Drill Bits
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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 48
- Drill America 11/16" HSS Black & Gold Drill Bit with Reduced 1/2" 3-Flat Shank, KFD SKU 17868 $20.99
- Drill America 11/16" HSS Black & Gold Drill Bit with Reduced 3/8" 3-Flat Shank, KFD SKU 17869 $29.10
- Approved Vendor 11/16" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 17872 $43.50
- Drill America 11/16" HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 17873 $27.79
- Drill America 11/16" HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 17874 $14.10
- Approved Vendor 11/16" HSS Jobber Length Drill Bit Blank SKU 17877 $40.78
- Approved Vendor 11/16" HSS Reduced Shank 135° Drill Bit, 1/2" Shank SKU 113 $34.45
- Approved Vendor 11/16" HSS Reduced Shank Drill Bit 3/8" Shank, D/ARSD Series SKU 17878 $36.69
- Approved Vendor 11/16" HSS Reduced Shank Drill Bit 3/8" Shank, DWDRSD Series SKU 17879 $23.81
- Approved Vendor 11/16" HSS Split Point Stub Drill Bit, DWDST Series SKU 17882 $26.26
- Approved Vendor 11/16" HSS Taper Length Drill Bit SKU 17888 $48.03
- Approved Vendor 11/16" Reduced Shank HSS Drill Bit 1/2" 3-Flat Shank, D/A3F Series SKU 17892 $26.20
- Approved Vendor 11/16" Reduced Shank HSS Drill Bit 1/2" Shank, D/ARSD Series SKU 17893 $25.60
- Approved Vendor 11/16" Reduced Shank HSS Drill Bit 1/2" Shank, DWDRSD Series SKU 17894 $11.11
- Approved Vendor 11/16" x 12" HSS Extra Long Drill Bit SKU 17902 $54.29
- Approved Vendor 11/16" x 12" HSS Extra Long Drill Bit with 1/2"Shank SKU 17903 $74.51
- Approved Vendor 11/16" x 18" HSS Extra Long Drill Bit with 1/2" Shank SKU 17905 $135.69
- Approved Vendor 11/16" x 6" Carbide Tipped Masonry Drill Bit SKU 17925 $11.78
- Approved Vendor 11/16"x23" Long Auger Bit with Self-Feed Screw and Outlining Spur SKU 17966 $311.69
- Alfa Tool 11/32 Cobalt Left Hand Jobber Drill SKU JDLCO93119 $23.62
- Alfa Tool 11/32 HS Alfa Usa Jobber Drill Split Point Tin SKU S150119TN $12.16
- DeWalt 11/32 In Titanium Ir Drill Bit SKU 115-DD5122 $16.47
- Alfa Tool 11/32 X 3 Overall Carbide Straight Flute Drill SKU SCSF30119 $50.12
- Alfa Tool 11/32" 150° Carbide 3 Flute Drill SKU SCTF30819 $58.00
- Approved Vendor 11/32" Carbide Spade Drill Bit SKU 17975 $57.16
- Approved Vendor 11/32" Carbide Tipped Die Drill Bit SKU 17976 $72.80
- Approved Vendor 11/32" Carbide Tipped Jobber Length Drill Bit SKU 17977 $55.41
- Approved Vendor 11/32" Carbide Tipped Taper Length Drill Bit SKU 17978 $81.74
- Approved Vendor 11/32" Cobalt Jobber Length Drill Bit, D/ACO Series SKU 17979 $9.36
- Drill America 11/32" Cobalt Jobber Length Drill Bit, DWDCO Series SKU 17980 $6.87
- Approved Vendor 11/32" Cobalt Split Point Stub Drill Bit SKU 17982 $8.46
- Approved Vendor 11/32" Cobalt Taper Length Drill Bit SKU 17983 $31.53
- Approved Vendor 11/32" Cryogenic HSS Black & Gold Jobber Length Drill Bit SKU 17984 $20.96
- Approved Vendor 11/32" HSS 1MT Taper Shank Drill Bit SKU 17985 $11.73
- Approved Vendor 11/32" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 17986 $14.58
- Drill America 11/32" HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 17987 $4.66
- Drill America 11/32" HSS Black & Gold KFD Split Point Mechanics Length Drill Bit with 3-Flat Shank SKU 17988 $4.89
- Approved Vendor 11/32" HSS Black & Gold Split Point Drill Bit with 3-Flat Shank, Contractor Series SKU 17989 $3.72
- Approved Vendor 11/32" HSS Black & Gold Split Point Stub Drill Bit, Contractor Series SKU 17990 $3.79
- Approved Vendor 11/32" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 17991 $6.32
- Approved Vendor 11/32" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 17992 $11.85
- Drill America 11/32" HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 17993 $4.39
- Drill America 11/32" HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 17994 $1.93
- Approved Vendor 11/32" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 17995 $21.26
- Approved Vendor 11/32" HSS Jobber Length Drill Bit Blank SKU 17996 $8.34
- Approved Vendor 11/32" HSS Left Hand Jobber Length Drill Bit SKU 17997 $10.91
- Approved Vendor 11/32" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 17998 $11.95
- Approved Vendor 11/32" HSS Polished Jobber Length Drill Bit, D/AP Series SKU 17999 $4.39