In this guide we’ll take a look at the best flat drill bit sets.
We’ve compared number of bits, sizes, carry case material and cost
to give you our top recommendations.

What is the Best Flat Wood Drill Bit Set?

IMAGERECOMMENDED PRODUCTSPRODUCTFEATURES
  • No. of bits: 8
  • Min – max size: 12 – 32 mm
  • Case material: Hard plastic
  • No. of bits: 13
  • Min – max size: 10 – 32 mm
  • Case material: Fabric roll-up case
  • No. of bits: 8
  • Min – max size: 13 – 38 mm
  • Case material: Fabric
  • No. of bits: 16
  • Min – max size: 6 – 38 mm
  • Case material: Wood
  • No. of bits: 8
  • Min – max size: 12 – 32 mm
  • Case material: Hard plastic

More Detailed Flat Drill Bit Set Reviews

DeWalt Extreme Flatbit Tough Case Set

FEATURESRATINGPRICE
FEATURES
  • No. of bits: 8
  • Min – max size: 12 – 32 mm
  • Case material: Hard plastic
OUR RATING
98

PRICE

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DeWalt Extreme Flatbit Tough Case Set Review

You can’t have an argument about which power tool brand is the best without considering DeWalt. We love their range of equipment, so testing out their Extreme Flatbit set was a must. We got hold of a set and put it through its paces on different pieces of timber.

The first thing you’ll notice is the robust case- the bits fit snugly so you don’t have to worry about them rattling about, and it looks good too. But it’s the bits themselves that are the stars of the show here and what makes this the best flat wood drill bit set we’ve ever seen.

The extra-thick shanks should resist any warping or bending through heavy use, and the clever chamfered cutting spurs are a masterstroke when you want to cut precise holes with minimal tear-out. They’re razor sharp and feel like they’ll last for years. If there was a way to reinvent the best flat drill bit, this is it.

Bosch Professional Self Cut Speed Set

FEATURESRATINGPRICE
FEATURES
  • No. of bits: 13
  • Min – max size: 10 – 32 mm
  • Case material: Fabric roll-up case
OUR RATING
95

PRICE

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Bosch Professional Self Cut Speed Set Review

German tool brand Bosch make all manner of equipment for keen DIYers up to seasoned professionals, so we thought they’d know how to make the best flat drill bit. We got hold of the SELFcut Speed Set and took a closer look at its features.

The bits are made from one piece of quality tool steel and the spade face features double spurs to lessen the chance of tear out on the surface of the workpiece. Bosch have refined the cutting head on these flat bits so that they stay sharper for longer and cut through wood like a hot knife through butter.

There’s one special difference that we think makes this one of the best flat bit drill sets out there- it’s the self-feeding threaded tip. Keeping a flat bit straight is one of the harder parts of drilling a good hole, so having a screw thread tip is a clever way of making sure you stay on the mark.

Bahco SB-9529/ S8 Flat Bit Set

FEATURESRATINGPRICE
FEATURES
  • No. of bits: 8
  • Min – max size: 13 – 38 mm
  • Case material: Fabric
OUR RATING
90

PRICE

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Bahco SB-9529/ S8 Flat Bit Set Review

Swedish tool brand Bahco make premium grade hand tools, so we think they should know a thing or two about making the best flat wood bit. We got hold of the bright orange fabric case and took a closer look. It’s a quality slim-line fabric case that looks smart and will keep the bits held together well.

First impressions are that this is a more traditional design of flat bit: they don’t have spurs or a scooped blade, but a more acute angle helps them cut more easily. The forged bits are made from high carbon steel, they’re strong and should hold up against heavy use.

Tooltime 16 Piece Flat Wood Drill Bit Set

FEATURESRATINGPRICE
FEATURES
  • No. of bits: 16
  • Min – max size: 6 – 38 mm
  • Case material: Wood
OUR RATING
90

PRICE

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Tooltime 16 Piece Flat Wood Drill Bit Set Review

We picked up this Tooltime flat wood drill bit set, because we know that you don’t always have to spend a fortune when it comes to getting the best flat wood bit set. If you’re buying for your home workshop or the odd DIY job, this set fits the bill.

We really like the wooden case- it makes the set feel premium and gives an excellent level of protection to the bits. It might not be the ideal solution for on-site jobs, but at home it’ll make a handsome display box for your best flat bits.

The hexagonal shanks will help them from coming loose in your drill chuck, but at a push you could use them in an impact driver. They aren’t re-inventing the wheel with these traditional shaped bits, and it’s probably not the best flat bit set ever made for repetitive drilling tasks, but they’re great for a hobbyist.

Irwin 8 Pcs Blue Groove Flat Bit Set

FEATURESRATINGPRICE
FEATURES
  • No. of bits: 8
  • Min – max size: 12 – 32 mm
  • Case material: Hard plastic
OUR RATING
90

PRICE

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Irwin 8 Pcs Blue Groove Flat Bit Set Review

If you’re looking for a tool brand with a fine pedigree, US based Irwin Tools have been innovating since 1885 and continue to up to the present day. We’ve used plenty of their products in the past, and the Blue Groove flat bit set called out to us for testing.

The quality plastic case will keep the bits from getting lost or blunted in your tool kit, and they have a thicker shank to resist bending. We tried out 22 mm bit on some softwood, and the double cutting spurs really do reduce tear out on the surface by scribing the shape of the hole before digging into the material.

The part that makes us think this is contender for best flat wood drill bit though is the blue groove shape itself- instead of a flat spade bit, it’s a “parabolic scoop” that helps to remove the wood chips quickly. Combined with the longer point, it should resist binding up inside the hole and hurting your wrist.

Flat Drill Bit Set Buyer’s Guide

Drilling large holes in wood or other soft materials is a cinch if you use the best flat wood drill bits. They use a spade shaped cutting edge, guided by a point, that shaves off the layers of material to give you a quick, if not neat, hole.

When you’re buying a flat bit set, look out for high carbon steel with a thick shank. Spade bits come under a lot of pressure and create a lot of friction when they’re being used, so cheap and thin bits can warp or bend too easily.

The other thing to bear in mind is that flat bits need to be sharp and kept in good condition to work at their best. Blunt bits will cause a lot of heat and can scorch the workpiece before they cut through it, so you should opt for a case that keeps them in top condition when not in use.

Conclusion

If you need to cut wide holes in timber, you need the best flat bit you can get your hands on. We tried out five of the best flat wood drill bit sets that we could find, but the clear winner this time is the DeWalt Extreme Flatbit set. With an oversize shaft and clever refinements to the cutting edge, they’ve made a brilliant set that will tackle the toughest jobs.

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