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 20
- Approved Vendor #35 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9221 $3.50
- Drill America #35 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9222 $0.99
- Approved Vendor #35 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9223 $2.46
- Approved Vendor #35 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9224 $3.50
- Drill America #35 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9226 $0.65
- Approved Vendor #35 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9227 $4.99
- Approved Vendor #35 HSS Left Hand Jobber Length Drill Bit SKU 9228 $3.08
- Approved Vendor #35 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9229 $3.61
- Approved Vendor #35 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9230 $1.03
- Approved Vendor #35 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9231 $1.20
- Approved Vendor #35 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9232 $0.99
- Approved Vendor #35 HSS Split Point Stub Drill Bit, D/AST Series SKU 9233 $0.98
- Approved Vendor #35 HSS Split Point Stub Drill Bit, DWDST Series SKU 9234 $0.80
- Approved Vendor #35 HSS Taper Length Drill Bit SKU 9236 $8.59
- Approved Vendor #35 Solid Carbide Drill Bit SKU 9237 $17.91
- Approved Vendor #35 Tin Coated Jobber Length Drill Bit SKU 9238 $3.10
- Drill America #35 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9240 $7.68
- Drill America #35 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9242 $2.26
- Approved Vendor #36 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9243 $2.00
- Drill America #36 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9244 $1.46
- Approved Vendor #36 Cobalt Long Threaded Shank Drill Bit SKU 9245 $5.48
- Approved Vendor #36 Cobalt Short Threaded Shank Drill Bit SKU 9246 $5.16
- Approved Vendor #36 Cobalt Split Point Stub Drill Bit SKU 9247 $2.02
- Approved Vendor #36 Cobalt Stubby Threaded Shank Drill Bit SKU 9248 $6.26
- Approved Vendor #36 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9249 $3.50
- Drill America #36 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9250 $0.99
- Approved Vendor #36 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9251 $2.46
- Approved Vendor #36 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9252 $3.50
- Drill America #36 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9253 $1.03
- Drill America #36 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9254 $0.65
- Approved Vendor #36 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9255 $4.91
- Approved Vendor #36 HSS Left Hand Jobber Length Drill Bit SKU 9256 $3.08
- Approved Vendor #36 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9257 $3.61
- Approved Vendor #36 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9258 $1.03
- Approved Vendor #36 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9259 $1.20
- Approved Vendor #36 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9260 $0.99
- Approved Vendor #36 HSS Split Point Stub Drill Bit, D/AST Series SKU 9261 $0.98
- Approved Vendor #36 HSS Split Point Stub Drill Bit, DWDST Series SKU 9262 $0.80
- Approved Vendor #36 HSS Taper Length Drill Bit SKU 9264 $6.44
- Approved Vendor #36 Solid Carbide Drill Bit SKU 9265 $18.52
- Approved Vendor #36 Tin Coated Jobber Length Drill Bit SKU 9266 $3.10
- Drill America #36 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9269 $7.68
- Approved Vendor #36 x 6" Cobalt Aircraft Extension Drill Bit SKU 9270 $4.23
- Drill America #36 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9271 $2.32
- Approved Vendor #37 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9272 $2.00
- Drill America #37 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9273 $1.46
- Approved Vendor #37 Cobalt Long Threaded Shank Drill Bit SKU 9274 $5.48
- Approved Vendor #37 Cobalt Short Threaded Shank Drill Bit SKU 9275 $5.16