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 28
- Approved Vendor #49 HSS Left Hand Jobber Length Drill Bit SKU 9828 $3.08
- Approved Vendor #49 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9829 $3.82
- Approved Vendor #49 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9830 $1.10
- Approved Vendor #49 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9831 $1.20
- Approved Vendor #49 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9832 $0.99
- Approved Vendor #49 HSS Split Point Stub Drill Bit, D/AST Series SKU 9833 $0.98
- Approved Vendor #49 HSS Split Point Stub Drill Bit, DWDST Series SKU 9834 $0.80
- Approved Vendor #49 HSS Taper Length Drill Bit SKU 9836 $3.72
- Approved Vendor #49 Solid Carbide Drill Bit SKU 9837 $14.15
- Drill America #49 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9839 $10.63
- Drill America #49 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9841 $3.30
- Approved Vendor #5 Carbide Tipped Jobber Length Drill Bit SKU 9847 $38.34
- Approved Vendor #5 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9851 $4.75
- Drill America #5 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 9852 $3.45
- Approved Vendor #5 Cobalt Long Threaded Shank Drill Bit SKU 9853 $6.20
- Approved Vendor #5 Cobalt Short Threaded Shank Drill Bit SKU 9854 $5.88
- Approved Vendor #5 Cobalt Split Point Stub Drill Bit SKU 9855 $4.52
- Approved Vendor #5 Cobalt Stubby Threaded Shank Drill Bit SKU 9856 $6.23
- Approved Vendor #5 Cobalt Very Stubby Threaded Shank Drill Bit SKU 9857 $6.52
- Approved Vendor #5 Extra Long Cobalt Threaded Shank Drill Bit SKU 9858 $6.42
- Approved Vendor #5 High Speed Steel Black & Gold Round Shank Step Drill Bit, (1/4" - 1-3/8" by 1/8") SKU 9860 $158.94
- Approved Vendor #5 High Speed Steel Round Shank Step Drill Bit, (1/4" - 1-3/8" by 1/8") SKU 9861 $158.94
- Approved Vendor #5 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 9862 $6.62
- Drill America #5 HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 9863 $1.90
- Approved Vendor #5 HSS Black & Gold Step Drill Bit (1/4" - 1-3/8" by 1/8") SKU 9865 $52.15
- Approved Vendor #5 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 9866 $4.55
- Approved Vendor #5 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 9867 $6.31
- Drill America #5 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 9868 $2.19
- Drill America #5 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 9869 $1.22
- Approved Vendor #5 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 9870 $11.31
- Approved Vendor #5 HSS Left Hand Jobber Length Drill Bit SKU 9872 $5.98
- Approved Vendor #5 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 9873 $7.48
- Approved Vendor #5 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 9874 $2.19
- Approved Vendor #5 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 9876 $2.33
- Approved Vendor #5 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 9877 $1.80
- Approved Vendor #5 HSS Split Point Stub Drill Bit, D/AST Series SKU 9878 $1.96
- Approved Vendor #5 HSS Split Point Stub Drill Bit, DWDST Series SKU 9879 $1.64
- Approved Vendor #5 HSS Step Drill Bit (1/4" - 1-3/8" by 1/8") SKU 9880 $52.15
- Approved Vendor #5 HSS Taper Length Drill Bit SKU 9883 $9.64
- Approved Vendor #5 Regular HSS Combined Drill Bit and Countersink SKU 9884 $4.49
- Approved Vendor #5 Solid Carbide Combined Drill Bit and Countersink SKU 9885 $79.10
- Approved Vendor #5 Solid Carbide Drill Bit SKU 9886 $34.31
- Approved Vendor #5 Tin Coated Jobber Length Drill Bit SKU 9887 $6.03
- Drill America #5 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9892 $9.54
- Drill America #5 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 9897 $3.80
- Approved Vendor #50 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 9947 $1.80
- Approved Vendor #50 Cobalt Long Threaded Shank Drill Bit SKU 9949 $4.25
- Approved Vendor #50 Cobalt Short Threaded Shank Drill Bit SKU 9950 $4.06