Drill Bits
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Expected delivery: Wed, Nov 18
This section covers twist drill bits for metal, wood and plastic, along with step drills, masonry bits and drill bit sets. Lengths include stub (screw machine), jobber, taper and extra-long. Materials range from general-purpose high-speed steel (HSS) to cobalt for stainless and tough alloys and solid carbide for production machining. Sizes come in fractional, letter, number (wire gauge) and metric series, with black oxide, bright, gold oxide and titanium nitride finishes.
What to check before you order
- Workpiece material. HSS suits mild steel, aluminum and wood. Cobalt holds up in stainless. Carbide-tipped masonry bits are for concrete and block in a hammer drill.
- Point style. A 135 degree split point self-centers and cuts harder metals. A 118 degree point is common for general work.
- Length. Stub length bits are stiffer and wander less. Use jobber length for general work and taper or extra-long only when you need reach.
- Shank. Check the chuck. Reduced shank bits fit a 1/2" chuck on larger sizes, and SDS shanks fit rotary hammers.
- Tap drill sizes. Number and letter sizes exist mainly to drill tap holes. Keep a chart near the drill press.
Common questions
What is a jobber length drill bit?
It is the standard general-purpose length, long enough for most hand drill and drill press work while still fairly rigid.
Learn more in our drill bit materials guide, browse Alfa Tool bits, or see taps and dies and all cutting tools.
Drill Bits: page 7
- Drill America #13 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8230 $3.03
- Approved Vendor #14 Carbide Tipped Jobber Length Drill Bit SKU 8233 $36.24
- Approved Vendor #14 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 8234 $3.54
- Drill America #14 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 8235 $2.58
- Approved Vendor #14 Cobalt Long Threaded Shank Drill Bit SKU 8236 $5.94
- Approved Vendor #14 Cobalt Short Threaded Shank Drill Bit SKU 8237 $5.84
- Approved Vendor #14 Cobalt Split Point Stub Drill Bit SKU 8238 $3.40
- Approved Vendor #14 Cobalt Stubby Threaded Shank Drill Bit SKU 8239 $6.04
- Approved Vendor #14 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 8240 $5.55
- Drill America #14 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 8241 $1.55
- Approved Vendor #14 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 8242 $3.84
- Approved Vendor #14 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 8243 $5.33
- Drill America #14 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 8244 $1.72
- Drill America #14 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 8245 $0.98
- Approved Vendor #14 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 8246 $8.66
- Approved Vendor #14 HSS Left Hand Jobber Length Drill Bit SKU 8248 $4.48
- Approved Vendor #14 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 8249 $6.05
- Approved Vendor #14 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 8250 $1.72
- Approved Vendor #14 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 8252 $1.97
- Approved Vendor #14 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 8253 $1.48
- Approved Vendor #14 HSS Split Point Stub Drill Bit, D/AST Series SKU 8254 $1.59
- Approved Vendor #14 HSS Split Point Stub Drill Bit, DWDST Series SKU 8255 $1.30
- Approved Vendor #14 HSS Taper Length Drill Bit SKU 8258 $8.76
- Approved Vendor #14 Solid Carbide Drill Bit SKU 8259 $27.71
- Approved Vendor #14 Tin Coated Jobber Length Drill Bit SKU 8332 $5.45
- Drill America #14 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8335 $8.30
- Drill America #14 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8337 $3.03
- Approved Vendor #15 Carbide Tipped Jobber Length Drill Bit SKU 8400 $36.24
- Approved Vendor #15 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 8401 $3.54
- Drill America #15 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 8402 $2.58
- Approved Vendor #15 Cobalt Long Threaded Shank Drill Bit SKU 8403 $7.58
- Approved Vendor #15 Cobalt Short Threaded Shank Drill Bit SKU 8404 $5.84
- Approved Vendor #15 Cobalt Split Point Stub Drill Bit SKU 8405 $3.40
- Approved Vendor #15 Cobalt Stubby Threaded Shank Drill Bit SKU 8406 $6.04
- Approved Vendor #15 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 8407 $5.55
- Drill America #15 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 8408 $1.55
- Approved Vendor #15 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 8409 $3.84
- Approved Vendor #15 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 8410 $5.33
- Drill America #15 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 8411 $1.72
- Approved Vendor #15 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 8413 $8.66
- Approved Vendor #15 HSS Left Hand Jobber Length Drill Bit SKU 8414 $4.48
- Approved Vendor #15 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 8415 $6.05
- Approved Vendor #15 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 8416 $1.72
- Approved Vendor #15 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 8417 $1.97
- Approved Vendor #15 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 8418 $1.48
- Approved Vendor #15 HSS Split Point Stub Drill Bit, D/AST Series SKU 8419 $1.59
- Approved Vendor #15 HSS Split Point Stub Drill Bit, DWDST Series SKU 8420 $1.30
- Approved Vendor #15 HSS Taper Length Drill Bit SKU 8422 $8.76