Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
A 1-1/4 inch drill bit isn’t a single tool — it’s a whole family of bits that share one diameter but do completely different jobs. The right one depends on what you’re drilling through: concrete wants an SDS hammer bit, wood wants a Forstner bit, tile wants a diamond core bit, and metal wants a twist or hole saw bit. Pick wrong and you’ll burn through time, money, and a few choice words.
I’m Mohammad Maruf — the founder and writer behind KitchPrep. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Whether you are boring through a foundation wall or cutting a clean hole in a cabinet door, this breakdown of the 1 1/4 inch drill bit options helps you match the bit to the material and the job you actually have.
Our Picks at a Glance
How To Choose The Best 1 1/4 Inch Drill Bit
Every bit here shares a 1.25-inch cutting diameter, but that’s where the similarity ends. Your drill’s chuck, the material you’re attacking, and the depth of the hole all narrow the field fast. Start with compatibility, then match the bit type to the job.
Match the shank to your drill
This is the first filter and the most common mistake. SDS Plus and SDS Max bits fit only rotary hammer drills with that specific chuck style — you can’t put them in a standard drill. Bits with a 3/8″ or 1/2″ shank fit ordinary chucks, but a 1/2″ reduced shank means the cutting end is bigger than the grip, so a standard drill can spin a much larger bit without needing a giant chuck.
Match the bit type to the material
Carbide-tipped SDS bits are for brick, stone, and concrete — the hammer action does the work. Forstner bits bore flat-bottomed holes in wood with a razor-sharp rim. Diamond core bits are the only sensible choice for porcelain and granite. High-speed steel twist bits handle metal, wood, and plastic but struggle on masonry. Buying a bit that can’t handle your material is the fastest way to waste money.
Check the working length, not just the total
A bit’s overall length includes the shank, so a 15-inch bit might only drill 9.5 inches deep. If you’re going through a foundation or thick wall, the working depth is the number that matters — getting halfway through and running out of bit is a frustrating, avoidable surprise.
Quick Comparison
| Model | Best For | Shank Type | Bit Type | Material | Amazon |
|---|---|---|---|---|---|
| Sabre Tools SDS Plus (39″)★ Best Overall | Extra-deep masonry holes | SDS Plus | Carbide Hammer | Carbide | Amazon |
| Freud PB-009 ForstnerWoodwork Champ | Clean flat-bottom wood holes | 3/8″ | Forstner | Blend | Amazon |
| DKIBBITH Diamond CoreTile Specialist | Porcelain and granite holes | 5/8-11 + 3/8″ Hex | Diamond Core | Diamond | Amazon |
| DECKRKAT TCT Hole Saw (2-Pack) | Hard metal and stainless | 3-Flat | Hole Saw | Tungsten Carbide | Amazon |
| DKIBBITH TCT Hole Saw (2-Pack) | Steel doors and sheet metal | 3/8″ | Hole Saw | High Speed Steel | Amazon |
| Drill America KFD3F1-1/4 | Metal drilling in standard chucks | 3-Flat 1/2″ | Twist (Reduced Shank) | High Speed Steel | Amazon |
| Sabre Tools SDS Max (15″) | Concrete foundations | SDS Max | Carbide Hammer | Alloy Steel, Carbide | Amazon |
| EDiamondTools Wet Core Bit | Deep concrete with rebar | 5/8″-11 | Wet Diamond Core | Diamond | Amazon |
| MaxTool Silver and Deming | Metal and wood in 1/2″ chucks | 1/2″ Reduced | Twist (Silver and Deming) | HSS M2 | Amazon |
In-Depth Reviews
1. Sabre Tools SDS Plus 1-1/4″ x 39″ Rotary Hammer Drill Bit
Our pick — over 4.5★ from 700+ verified ratings; the strongest balance of quality and price.
A 39-inch SDS Plus bit engineered for deep, continuous masonry drilling.
When your hole runs 39 inches deep, you need a bit that clears its own path. This Sabre Tools SDS Plus bit pairs its long 39-inch reach with a 2-flute spiral design, so debris exits the hole fast and the carbide tip stays cool instead of cooking itself mid-job. Owners describe putting it through 12 floors and finding it “still sharp and drilling with no problems” when the work was done.
The 1.25-inch cutting diameter rides on a self-centering carbide tip, which means the bit starts true and doesn’t wander across the surface of brick, stone, or block. It’s built for SDS Plus rotary hammers from Bosch, DeWalt, Hitachi, Hilti, Makita, and Milwaukee — if your hammer takes that chuck, this bit drops straight in. A ham radio operator moving to Arizona used it to sink a dozen 8-foot ground rods into brutal desert soil and came away impressed.
The trade-off is straightforward: this bit is a deep-hole specialist. At 39 inches long, it’s unwieldy for shallow anchor holes, and it only works in SDS Plus hammers — nothing else. Buyers consistently report it drills quickly even with a standard battery-powered drill, which says plenty about how well the flute design moves material.
What wins owners over
- 2-flute spiral clears debris fast, keeping the bit cool on long runs
- Self-centering carbide tip starts holes true on brick and block
- Fits every major SDS Plus rotary hammer brand
Who should pass
- 39-inch length is overkill for shallow or standard-depth holes
- Only works in SDS Plus hammers — not standard chucks
Reach for it when: you’re boring long, straight holes through foundations, cinder block, or ground-level masonry and need the bit to survive the whole run.
Look elsewhere if: your drill is a standard chuck with no SDS Plus — this bit won’t even mount.
2. Freud PB-009 1-1/4″ Forstner Bit
A Forstner bit that delivers clean, flat-bottomed holes in wood with minimal effort.
Forstner bits are the answer when you need a clean, flat-bottomed hole in wood, and this Freud model is what reviewers keep circling back to. Its razor-sharp serrated rim, sharp spur, and steep angled cutting edges produce smooth, flat holes with “chisel-like” curls for fast chip removal. Reviewers consistently praise its smooth, tear-free cuts on hardwood and plywood.
The forged construction is built to hold up, and Freud backs it with a limited lifetime guarantee, which says something about how long they expect it to keep cutting. It’s made for wood and wood products like plywood, MDF, and butcher block — not metal, not masonry.
Compared to the SD2O bits sold in budget sets, the difference shows up within a few holes: cheaper Forstner bits go dull after a handful of uses, while this one stays sharp through repeated cuts. If you want one bit that will still be cutting cleanly years from now, that’s the value here.
Flat-bottom finish: the steep cutting edges leave holes so smooth they need no sanding — a real time-saver for dowel joints and hinge mortises.
The honest catch: at 3.5 inches long it’s built for a drill press, not long reach, and it’s wood-only.
Best for: woodworkers doing dowel sockets, hinge mortises, or any hole where a clean flat bottom matters — especially on a drill press.
Not for: anyone drilling metal or masonry; this bit will not survive either.
3. DKIBBITH 1-1/4″ Dry Diamond Core Drill Bit
A dry diamond core bit for clean holes in porcelain, granite, and quartz.
Drilling a faucet hole in a porcelain or granite countertop is one of the scariest DIY jobs there is — one slip and the tile cracks. This DKIBBITH diamond core bit is exactly what owners reach for, with a vacuum-brazed diamond edge that handles porcelain, tile, granite, marble, stone, and non-reinforced concrete. One buyer used it once to drill a hole in a quartz sink and called it “perfect.”
The bit arrives with two mounting options: a 5/8-11 threaded arbor for angle grinders and wet polishers, plus a 3/8-inch hex shank adapter for standard drills. That flexibility means the same 1.25-inch bit works on whatever you’ve got. Buyers report great results with heavy-duty 3/8 drills, cutting through solid granite “like butter” and producing clean, rounded corners for sink holes.
The durability conversation is the honest split here — some owners note the diamonds still sparkle after use, while others report the bit doesn’t last long. This is a bit to treat with care: start at an angle, let the diamonds do the cutting, and don’t push. The manufacturer warns specifically not to use it in hammer mode, because the impact will destroy the diamond edge.
The versatility win
- Dual mounting — 5/8-11 for grinders, hex shank for drills
- Vacuum-brazed diamond edge cuts porcelain and granite cleanly
- Ideal for faucet holes and rounded sink corners
Handle with care
- Durability is mixed — cheap enough to be a disposable for some owners
- Never use in hammer mode; it will wreck the diamond edge
Choose this when: you need a single clean hole in tile, granite, or a quartz sink and want one bit that fits both a grinder and a drill.
Think twice if: you’re doing dozens of tile holes — consider a pricier core bit built for extended life.
4. DECKRKAT 2-Pack 1-1/4″ TCT Hole Saws
A 2-pack of tungsten carbide hole saws for stainless steel and hard alloys.
Cutting a 1.25-inch hole in stainless steel is a job most twist bits can’t survive, which is why this DECKRKAT pair of tungsten carbide tipped hole saws exists. Designed for stainless steel, aluminum, high alloy steel, copper, and plastic, these cutters have earned a reputation for slicing through 1/2″ plate steel cleanly when run at slow RPMs with cutting oil — the method the manufacturer itself recommends.
The 3/8-inch 3-flatted shank locks into a standard drill chuck with a strong, steady grip, and the spring-loaded pilot drill bit keeps the saw from wandering across the work surface. Owners describe making many holes in 5/16″ steel with the right lube and pressure, and the 2-pack price works out to a fraction of what a single brand-name cutter costs.
Here’s the honest mixed bag: the cutting teeth last beautifully for some owners and chip off quickly for others. The recurring theme is that this is a capable budget cutter, not an indestructible one — use cutting oil, start slow, and let the carbide do the work. A couple of owners also note the pilot bit’s set screw needs occasional retightening mid-job.
Fast and precise: owners mention these cut “twice as fast” as the pricier competition while producing exact-size holes in hard steel.
The durability split: great value until you hit a bad one — teeth can chip, so buy the 2-pack knowing one might be a spare.
Reach for it if: you need clean holes in stainless, steel plate, or aluminum and want two cutters for the price of one brand-name saw.
skip it if: your job demands guaranteed long life from a single cutter — treat this as value gear, not a lifetime tool.
5. DKIBBITH 2-Pack 1-1/4″ TCT Hole Saw Set
A TCT hole saw set that cuts through steel doors and sheet metal quickly.
Some bits are for projects, and some are for one specific miserable job — this DKIBBITH TCT set excels at the second. Owners describe using it to cut a deadbolt hole in a steel door after a hardware-store hole saw refused to cut at all; this one went through “in seconds.” That’s the core strength: tungsten carbide tipped teeth that bite into stainless, mild steel, iron, copper, and brass up to 1/8-inch thick.
The 2-pack includes titanium-plated split point pilot bits that prevent wandering, plus an ejection spring that pushes the cut slug out of the saw so you’re not fishing it out with pliers. It’s a well-rounded kit for electrical work, plumbing, and HVAC, where clean burr-free holes matter. Owners praise how fast the teeth cut and note the build quality beats what they’ve picked up at big-box stores.
The honest trade-off is the same one that runs through TCT hole saws: the pilot bit is the weak link. One owner who cut a 4.5-inch hole in a shipping container had the saw itself perform solidly, but found the pilot bit left something to be desired. Handle the teeth carefully — the manufacturer warns against dropping the bit, since high-hardness carbide teeth can chip on impact.
What stands out
- Titanium-plated split point pilot keeps the saw on target
- Ejection spring pops the slug out for quick repeat cuts
- Beats big-box hole saws on both price and cut speed
What to watch
- Pilot bit is the weak link for some owners
- Carbide teeth chip if the saw is dropped or slammed
Buy it for: deadbolt holes in steel doors, electrical boxes, or pipe work where you want a clean fast cut and a spare.
Not for: masonry or concrete — this is strictly a metal, wood, and plastic cutter.
6. Drill America 1-1/4″ Reduced Shank HSS Twist Bit
A reduced-shank twist bit that fits standard chucks and self-centers on metal.
Most 1.25-inch twist bits need a giant drill chuck to hold them, but this Drill America bit gets around that with a 3-flat 1/2-inch reduced shank. The reduced grip means a standard 1/2″ chuck can spin a full 1.25-inch cutting diameter — you get the reach without buying a bigger drill. The 135-degree split point is the star here: compared to a conventional 118-degree tip, it self-centers and won’t “walk” across the metal surface when you start.
Made from M1 high-speed steel, this contractor-grade bit handles aluminum, iron, and steel. Owners describe it as sharp and well-balanced, arriving coated in oil and sealed in a plastic case — the kind of packaging that tells you the maker cares about storage. It’s a common 3-inch flute length with a 6-inch overall length, so you can swap between bits without readjusting your setup much.
The honest split is on performance: some customers note it removes metal shavings cleanly and stays sharp, while others say you get what you pay for and it couldn’t finish a single hole. If you’re drilling softer metals like aluminum at moderate speed, you’re in its wheelhouse. If you plan to push it hard through tough steel, buy expecting to treat it gently.
The self-centering edge: a 135-degree split point means no walking and no wasted pilot holes — a real time-saver on slick metal surfaces.
The catch: the oil coating is sticky and grabs debris on early holes, and performance on hardened steel is a coin flip.
Best for: metalworkers and DIYers who need a 1.25-inch hole in aluminum or mild steel without upgrading their drill chuck.
pass on it if: you’re regularly drilling hardened or thick steel — the M1 HSS will struggle where carbides shine.
7. Sabre Tools SDS Max 1-1/4″ x 15″ Rotary Hammer Drill Bit
An SDS Max bit that bores through concrete foundations with a 9.5-inch working depth.
When you need to run a pipe through a poured foundation, this Sabre Tools SDS Max bit is the tool owners keep coming back to. Its 4-blade cutter head with self-centering carbide tip drives through 8 inches of concrete “easily,” and one owner punched a 1-3/8″ hole through a 10-inch wall in about 15 minutes. The U-flute design clears material fast while keeping the bit cool on long runs.
At 15 inches overall, this bit gives you a 9.5-inch working depth — enough for most foundation and curb work. It’s built for SDS Max rotary hammers from Bosch, DeWalt, Hitachi, Hilti, Makita, and Milwaukee, and owners specifically praise how securely it seats in the chuck with no wobble. One buyer used it to run 1.5-inch ABS pipe from a sump pump to the street and never needed to rent a bit from a tool shop.
The durability question is where opinions split: some reviewers point out the tip stays sharp after multiple holes, while others see faster wear. Consider that this 15-inch bit is the shorter sibling of the 39-inch SDS Plus pick above — if your hammer takes SDS Max, this is the more wieldy option for standard-depth foundation work. It’s built for concrete, brick, stone, and block — nothing softer.
Why owners trust it
- 4-blade carbide head cuts concrete fast with a true start
- U-flute moves debris out, keeping the bit cool on deep holes
- Secure SDS Max fit with zero wobble in the chuck
The fit question
- SDS Max only — won’t fit SDS Plus hammers
- Durability and sharpness get mixed reports over time
Reach for this when: you own an SDS Max hammer and need to bore through foundations, curbs, or thick concrete walls for pipes and anchors.
Look elsewhere if: your hammer takes SDS Plus — grab the 39-inch model above instead.
8. EDiamondTools 1-1/4″ Wet Diamond Core Bit
The wet-only core bit that keeps cutting through concrete and rebar when others give up.
This EDiamondTools bit is the answer when your hole goes deep and the concrete hides rebar inside. With a 14-inch drilling depth and embedded diamond concentration, it’s a general-purpose core drill for concrete, concrete with light steel reinforcement, or hard masonry. One owner drilled seven 6-1/2″ holes through 9-inch concrete, hit rebar in five of them, and still had plenty of cutting teeth left when done.
The 5/8″-11 threaded arbor screws onto handheld core drills or dedicated rigs — this is a rotary-mode-only tool, with the manufacturer explicitly warning against wire mesh drilling and hammer mode. The water feed is non-negotiable: wet operation keeps the diamond segments cool and cuts down on dust, which is why owners running it with a water feeder see the teeth last. It cut through an 8-inch concrete wall “just fine” with noticeable but acceptable wear afterward.
Compared to the dry diamond bit above, this is a different philosophy: heavier, slower, wet-only, but built for serious depth and rebar encounters. The durability reports split — some owners say the teeth hold up great, others report them breaking off. Realistically, hitting rebar will tax any bit, and this one handles it far better than a dry bit would.
Built for the big jobs: a 14-inch depth rating and rebar tolerance make this the one to rent-or-buy for foundation work over a weekend.
The honest requirement: this bit demands a water feed and rotary mode — no hammer, no shortcuts, or you’ll shorten its life fast.
Buy it for: deep, clean core holes in concrete and masonry where you might hit rebar and can supply water to the cut.
Pass if: you want a dry bit for occasional tile work — this one’s designed for the wet, heavy-duty end of the spectrum.
9. MaxTool 1-1/4″ Silver and Deming HSS M2 Drill Bit
The precision metal bit that drills hardened 4140 steel and comes out flawless.
This MaxTool Silver and Deming bit is what you grab when the hole has to be clean and the metal won’t be easy. Made from HSS M2 high-speed steel with a black oxide finish, it’s built to reduce friction, resist corrosion, and hold lubricant better than bare steel. Owners have run it through 3/16″ steel tubing and even 3 holes in 0.3-inch hardened 4140 with a pilot hole and cutting fluid — no wear, no chips, flawless cuts.
The 1/2″ reduced shank fits standard 1/2″ chucks, and the milled flute design clears chips efficiently so the bit doesn’t clog on deep holes. The 118-degree chisel geometry gives a quick start and accurate penetration, and the 6-inch overall length offers solid reach for deeper drilling in metal, wood, and fiberglass. It arrives in protective coded packaging, which owners appreciate for keeping the edge safe in a toolbox.
Here’s the honest word of caution from owners: this bit is very sharp, and that sharpness can work against you on exit. Cutting through 1/4″ metal, the bit’s end can grab and twist a powerful drill right out of your hands — reviewers explicitly advise using the side handle and holding on tight. The durability record is mostly strong, though an occasional bit does break during hard use.
What earns its keep
- HSS M2 holds an edge on hardened steel where cheaper bits die
- Black oxide finish reduces friction and resists rust
- 1/2″ reduced shank fits standard chucks
Respect the edge
- Sharp exit can grab and twist a drill — use the side handle
- Milled flutes need cutting fluid for best results on hard metal
Choose this for: precise holes in hard or hardened metal where you can use a pilot and lubricant — it rewards careful technique.
Think twice if: you’re drilling masonry or want a bit that forgives sloppy speed and pressure.
Understanding the Specs
Shank type decides compatibility
The shank is the end that goes in your drill, and it’s the first thing to match. SDS Plus and SDS Max shanks fit only rotary hammer drills with that exact chuck — they’re not interchangeable with each other or with standard chucks. A 3/8″ or 1/2″ straight shank fits ordinary drill chucks, and a “reduced shank” means a big cutting diameter on a smaller grip so a standard drill can spin it.
Flute design moves the debris
Flutes are the spiral grooves that pull material out of the hole as you drill. Two flutes clear chips faster than one, which is why deep masonry bits use multi-flute designs — material exits quickly and the bit stays cool. A U-flute is a specific shape with a wide, open channel that’s especially good at moving concrete dust. On Forstner bits, the steep cutting edges curl wood shavings out like “chisel-like” ribbons.
FAQ
Will an SDS Plus bit fit my regular cordless drill?
What’s the difference between SDS Plus and SDS Max?
Can I use a dry diamond core bit on granite or porcelain?
Why does a Forstner bit cost more than a regular wood bit?
How deep can a 15-inch SDS Max bit actually drill?
Can a TCT hole saw cut through stainless steel?
What does a reduced shank do for me?
Why do I need water for a wet diamond core bit?
Final Thoughts: The Verdict
For most people, the 1 1/4 inch drill bit winner is the Sabre Tools SDS Plus 39-inch because its 2-flute carbide design and extreme length cover the toughest masonry jobs while staying sharp hole after hole. If you cut wood and want a flawless flat bottom, grab the Freud Forstner bit. And for countertop tile or metal doors, the DKIBBITH diamond core or TCT hole saw set will finish the job clean.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of August 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, KitchPrep earns from qualifying purchases. This does not affect which products we feature.
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