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 36
- Approved Vendor #70 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 11011 $8.41
- Bondhus #70 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11012 $5.49
- Approved Vendor #70 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11013 $1.65
- Approved Vendor #70 HSS Taper Length Drill Bit SKU 11014 $5.30
- Approved Vendor #71 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 11015 $4.11
- Drill America #71 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 11016 $2.62
- Approved Vendor #71 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 11017 $3.79
- Drill America #71 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 11018 $1.65
- Drill America #71 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 11019 $1.09
- Approved Vendor #71 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 11020 $8.41
- Approved Vendor #71 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11021 $5.49
- Approved Vendor #71 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11022 $1.65
- Approved Vendor #71 HSS Taper Length Drill Bit SKU 11023 $5.30
- Approved Vendor #72 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 11024 $4.11
- Drill America #72 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 11025 $2.62
- Approved Vendor #72 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 11026 $3.79
- Drill America #72 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 11027 $1.65
- Drill America #72 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 11028 $1.09
- Approved Vendor #72 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 11029 $8.41
- Approved Vendor #72 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11030 $5.49
- Approved Vendor #72 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11031 $1.65
- Approved Vendor #72 HSS Taper Length Drill Bit SKU 11032 $5.30
- Approved Vendor #73 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 11033 $4.11
- Drill America #73 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 11034 $2.62
- Approved Vendor #73 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 11035 $3.79
- Drill America #73 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 11036 $1.65
- Drill America #73 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 11037 $1.09
- Approved Vendor #73 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 11038 $8.41
- Approved Vendor #73 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11039 $5.49
- Approved Vendor #73 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11040 $1.65
- Approved Vendor #73 HSS Taper Length Drill Bit SKU 11041 $5.30
- Approved Vendor #74 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 11042 $4.11
- Drill America #74 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 11043 $2.62
- Approved Vendor #74 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 11044 $3.79
- Drill America #74 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 11045 $1.65
- Drill America #74 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 11046 $1.09
- Approved Vendor #74 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 11047 $8.41
- Approved Vendor #74 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11048 $5.49
- Approved Vendor #74 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11049 $1.65
- Approved Vendor #74 HSS Taper Length Drill Bit SKU 11050 $5.30
- Approved Vendor #75 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 11051 $4.55
- Drill America #75 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 11052 $2.88
- Approved Vendor #75 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 11053 $3.79
- Drill America #75 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 11054 $1.84
- Drill America #75 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 11055 $1.09
- Approved Vendor #75 HSS Cobalt 135° Split Point Jobber Length Drill Bit SKU 11056 $9.22
- Approved Vendor #75 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 11057 $6.05
- Approved Vendor #75 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 11058 $1.84