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 32
- Approved Vendor #58 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 10121 $3.30
- Drill America #58 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 10122 $0.93
- Approved Vendor #58 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 10123 $2.74
- Drill America #58 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 10124 $1.26
- Drill America #58 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 10125 $0.74
- Approved Vendor #58 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 10126 $5.59
- Approved Vendor #58 HSS Left Hand Jobber Length Drill Bit SKU 10127 $3.11
- Approved Vendor #58 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 10128 $4.31
- Approved Vendor #58 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 10129 $1.26
- Approved Vendor #58 HSS Split Point Stub Drill Bit, D/AST Series SKU 10130 $1.14
- Approved Vendor #58 HSS Split Point Stub Drill Bit, DWDST Series SKU 10131 $0.93
- Approved Vendor #58 HSS Taper Length Drill Bit SKU 10133 $3.74
- Approved Vendor #58 Solid Carbide Drill Bit SKU 10134 $16.70
- Drill America #58 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 10135 $14.55
- Drill America #58 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 10136 $7.96
- Approved Vendor #59 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 10137 $2.27
- Drill America #59 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 10138 $1.69
- Approved Vendor #59 Cobalt Split Point Stub Drill Bit SKU 10139 $2.26
- Approved Vendor #59 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 10140 $3.30
- Drill America #59 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 10141 $0.93
- Approved Vendor #59 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 10142 $2.74
- Drill America #59 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 10143 $1.26
- Drill America #59 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 10144 $0.74
- Approved Vendor #59 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 10145 $5.59
- Approved Vendor #59 HSS Left Hand Jobber Length Drill Bit SKU 10146 $3.11
- Approved Vendor #59 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 10147 $4.31
- Approved Vendor #59 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 10148 $1.26
- Approved Vendor #59 HSS Split Point Stub Drill Bit, D/AST Series SKU 10149 $1.22
- Approved Vendor #59 HSS Split Point Stub Drill Bit, DWDST Series SKU 10150 $0.99
- Approved Vendor #59 HSS Taper Length Drill Bit SKU 10152 $3.74
- Approved Vendor #59 Solid Carbide Drill Bit SKU 10153 $16.70
- Drill America #59 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 10154 $14.55
- Drill America #59 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 10155 $7.96
- Approved Vendor #6 Carbide Tipped Jobber Length Drill Bit SKU 10166 $38.34
- Approved Vendor #6 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 10169 $4.75
- Drill America #6 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 10170 $3.45
- Approved Vendor #6 Cobalt Long Threaded Shank Drill Bit SKU 10171 $6.27
- Approved Vendor #6 Cobalt Short Threaded Shank Drill Bit SKU 10172 $6.07
- Approved Vendor #6 Cobalt Split Point Stub Drill Bit SKU 10173 $4.52
- Approved Vendor #6 Cobalt Stubby Threaded Shank Drill Bit SKU 10174 $6.82
- Approved Vendor #6 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 10175 $6.62
- Drill America #6 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 10176 $1.90
- Approved Vendor #6 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 10177 $4.55
- Approved Vendor #6 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 10178 $6.31
- Drill America #6 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 10179 $2.19
- Drill America #6 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 10180 $1.22
- Approved Vendor #6 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 10181 $11.31
- Approved Vendor #6 HSS Left Hand Jobber Length Drill Bit SKU 10183 $5.98