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 19
- Approved Vendor #33 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9167 $2.46
- Approved Vendor #33 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9168 $3.50
- Drill America #33 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9169 $1.03
- Drill America #33 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9170 $0.65
- Approved Vendor #33 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9171 $4.99
- Approved Vendor #33 HSS Left Hand Jobber Length Drill Bit SKU 9172 $3.08
- Approved Vendor #33 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9173 $3.61
- Approved Vendor #33 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9174 $1.03
- Approved Vendor #33 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9175 $1.20
- Approved Vendor #33 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9176 $0.99
- Approved Vendor #33 HSS Split Point Stub Drill Bit, D/AST Series SKU 9177 $0.98
- Approved Vendor #33 HSS Split Point Stub Drill Bit, DWDST Series SKU 9178 $0.80
- Approved Vendor #33 HSS Taper Length Drill Bit SKU 9180 $8.59
- Approved Vendor #33 Solid Carbide Drill Bit SKU 9181 $18.45
- Approved Vendor #33 Tin Coated Jobber Length Drill Bit SKU 9182 $3.10
- Drill America #33 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9184 $7.68
- Drill America #33 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9186 $2.26
- Approved Vendor #34 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9187 $2.06
- Drill America #34 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9188 $1.49
- Approved Vendor #34 Cobalt Long Threaded Shank Drill Bit SKU 9189 $5.48
- Approved Vendor #34 Cobalt Short Threaded Shank Drill Bit SKU 9190 $5.16
- Approved Vendor #34 Cobalt Split Point Stub Drill Bit SKU 9191 $2.02
- Approved Vendor #34 Cobalt Stubby Threaded Shank Drill Bit SKU 9192 $6.26
- Approved Vendor #34 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9193 $3.50
- Drill America #34 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9194 $0.99
- Approved Vendor #34 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9195 $2.46
- Approved Vendor #34 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9196 $3.50
- Drill America #34 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9197 $1.03
- Drill America #34 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9198 $0.65
- Approved Vendor #34 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9199 $4.99
- Approved Vendor #34 HSS Left Hand Jobber Length Drill Bit SKU 9200 $3.08
- Approved Vendor #34 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9201 $3.61
- Approved Vendor #34 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9202 $1.03
- Approved Vendor #34 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9203 $1.20
- Approved Vendor #34 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9204 $0.99
- Approved Vendor #34 HSS Split Point Stub Drill Bit, D/AST Series SKU 9205 $0.98
- Approved Vendor #34 HSS Split Point Stub Drill Bit, DWDST Series SKU 9206 $0.80
- Approved Vendor #34 HSS Taper Length Drill Bit SKU 9208 $8.59
- Approved Vendor #34 Solid Carbide Drill Bit SKU 9209 $18.45
- Approved Vendor #34 Tin Coated Jobber Length Drill Bit SKU 9210 $3.10
- Drill America #34 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9212 $7.68
- Drill America #34 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9214 $2.26
- Approved Vendor #35 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9215 $2.06
- Drill America #35 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9216 $1.49
- Approved Vendor #35 Cobalt Long Threaded Shank Drill Bit SKU 9217 $5.48
- Approved Vendor #35 Cobalt Short Threaded Shank Drill Bit SKU 9218 $5.55
- Approved Vendor #35 Cobalt Split Point Stub Drill Bit SKU 9219 $2.02
- Approved Vendor #35 Cobalt Stubby Threaded Shank Drill Bit SKU 9220 $6.26