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 49
- Approved Vendor 11/32" HSS Polished Jobber Length Drill Bit, DWDP Series SKU 18000 $3.79
- Approved Vendor 11/32" HSS Reduced Shank 118° Drill Bit, 1/4" Shank SKU 199 $19.08
- Approved Vendor 11/32" HSS Reduced Shank Drill Bit 1/4" Shank, D/ARSD Series SKU 18002 $6.82
- Approved Vendor 11/32" HSS Reduced Shank Drill Bit 1/4" Shank, DWDRSD Series SKU 18003 $6.15
- Approved Vendor 11/32" HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 18004 $5.46
- Approved Vendor 11/32" HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 18005 $3.76
- Approved Vendor 11/32" HSS Split Point Stub Drill Bit, D/AST Series SKU 18006 $4.46
- Approved Vendor 11/32" HSS Split Point Stub Drill Bit, DWDST Series SKU 18007 $3.50
- Approved Vendor 11/32" HSS Taper Length Drill Bit SKU 18011 $10.29
- DeWalt 11/32" Pilot Point Drillbit SKU 115-DW1922B $12.34
- Approved Vendor 11/32" Solid Carbide Drill Bit SKU 18013 $67.54
- Approved Vendor 11/32" Stepped Point Cobalt Drill Bit with 3-Flat Shank SKU 18014 $15.88
- Approved Vendor 11/32" Tin Coated Jobber Length Drill Bit SKU 18015 $11.52
- Approved Vendor 11/32" X 12" HSS Aircraft Extension Drill Bit, D/AA/C SKU 18019 $16.64
- Drill America 11/32" X 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 18020 $13.40
- Approved Vendor 11/32" x 12" HSS Extra Long Drill Bit SKU 18021 $21.74
- Approved Vendor 11/32" x 6" HSS Aircraft Extension Drill Bit, D/AA/C SKU 18036 $17.18
- Drill America 11/32" x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 18037 $10.74
- Alfa Tool 11/64 Cobalt Left Hand Jobber Drill SKU JDLCO93108 $15.86
- DeWalt 11/64 In Titanium Ir Drill Bit SKU 115-DD5111 $8.20
- Approved Vendor 11/64" Carbide Spade Drill Bit SKU 18047 $22.72
- Approved Vendor 11/64" Carbide Tipped Die Drill Bit SKU 18048 $57.28
- Approved Vendor 11/64" Carbide Tipped Jobber Length Drill Bit SKU 18049 $35.74
- Approved Vendor 11/64" Carbide Tipped Taper Length Drill Bit SKU 18050 $51.34
- Approved Vendor 11/64" Cobalt Jobber Length Drill Bit, D/ACO Series SKU 18051 $2.94
- Drill America 11/64" Cobalt Jobber Length Drill Bit, DWDCO Series SKU 18052 $2.10
- Approved Vendor 11/64" Cobalt Split Point Stub Drill Bit SKU 18054 $2.76
- Approved Vendor 11/64" Cobalt Taper Length Drill Bit SKU 18055 $19.39
- Approved Vendor 11/64" Cryogenic HSS Black & Gold Jobber Length Drill Bit SKU 18056 $6.06
- Approved Vendor 11/64" HSS 1MT Taper Shank Drill Bit SKU 18057 $8.20
- Approved Vendor 11/64" HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 18058 $4.45
- Drill America 11/64" HSS Black & Gold KFD Split Point Jobber Length Drill Bit Killer Force Drill Bit SKU 18059 $1.35
- Drill America 11/64" HSS Black & Gold KFD Split Point Mechanics Length Drill Bit SKU 18060 $1.37
- Approved Vendor 11/64" HSS Black & Gold Split Point Stub Drill Bit, Contractor Series SKU 18062 $1.34
- Approved Vendor 11/64" HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 18063 $2.27
- Approved Vendor 11/64" HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 18064 $4.06
- Drill America 11/64" HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 18065 $1.40
- Drill America 11/64" HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 18066 $0.63
- Approved Vendor 11/64" HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 18067 $6.73
- Approved Vendor 11/64" HSS Jobber Length Drill Bit Blank SKU 18068 $2.79
- Approved Vendor 11/64" HSS Left Hand Jobber Length Drill Bit SKU 18069 $4.51
- Approved Vendor 11/64" HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 18070 $4.03
- Approved Vendor 11/64" HSS Polished Jobber Length Drill Bit, D/AP Series SKU 18071 $1.40
- Approved Vendor 11/64" HSS Polished Jobber Length Drill Bit, DWDP Series SKU 18072 $1.21
- Approved Vendor 11/64" HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 18074 $1.71
- Approved Vendor 11/64" HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 18075 $1.22
- Approved Vendor 11/64" HSS Split Point Stub Drill Bit, D/AST Series SKU 18076 $1.58
- Approved Vendor 11/64" HSS Split Point Stub Drill Bit, DWDST Series SKU 18077 $1.19