Cutting Tools & Machining

9,000+ products

Expected delivery: Wed, Nov 18

Cutting tools for maintenance shops, fabricators and machine shops: drill bits in high-speed steel, cobalt and carbide, taps and dies for inch and metric threads, end mills and inserts, hole saws and annular cutters, countersinks, reamers and burs and saw blades. Maintenance techs, contractors and machinists all use this range.

How to choose cutting tools

• Match the tool material to the workpiece. High-speed steel (HSS) covers general drilling in mild steel, aluminum and wood. Cobalt HSS holds its edge in stainless and harder alloys. Solid carbide runs faster and lasts longer in rigid machines, but it is brittle in a hand drill. Our guide to drill bits by material explains coatings, point angles and lengths.
• Use the right point angle. A 118 degree point is common for general-purpose work. A 135 degree split point starts without a center punch and suits harder metals.
• Size the tap drill before you tap. Each thread size has a matching tap drill, and the wrong one breaks taps or strips threads. See how to read thread sizes and our taps and dies.
• Control speed and heat. Harder materials and larger diameters need slower speeds. Use cutting fluid on steel and stainless, found under oils and cutting fluids.
• Pick the right hole-making tool. Twist drills suit small holes, step drills suit thin sheet, and hole saws or annular cutters suit large holes.

We carry the Alfa Tool line of drill bits, taps, end mills, countersinks and hole saws. For production tooling, a recurring tool crib order or part numbers you don't see online, ask for a quote. Shops that go through bits every week can set up vendor managed inventory so bins are counted and refilled on a schedule.

Common questions

What drill bit should I use for stainless steel?

A cobalt drill bit with a 135 degree split point is a common choice. Run it at a low speed with steady pressure and cutting oil, so the bit keeps cutting and does not work-harden the steel.

What is the difference between a plug tap and a bottoming tap?

A plug tap has a few tapered threads at the tip and is the general-purpose choice. A bottoming tap has almost no taper, so it cuts full threads close to the bottom of a blind hole after a plug tap has started the thread.

When should I use an annular cutter instead of a twist drill?

Annular cutters cut only a ring of metal and leave a solid slug, so they make large holes in steel faster and with less power. They are usually run in a magnetic drill press.

Cutting Tools & Machining by type

• Drill Bits 5,000+
• Taps & Dies 2,000+
• End Mills & Inserts 700+
• Countersinks, Reamers & Burs 500+
• Hole Saws & Annular Cutters 400+
• Saw Blades 100+
• Other Cutting Tools & Machining 1+

Cutting Tools & Machining: page 16

• Approved Vendor #25 Cobalt Long Threaded Shank Drill Bit SKU 8806 $6.33
• Approved Vendor #25 Cobalt Short Threaded Shank Drill Bit SKU 8807 $5.65
• Approved Vendor #25 Cobalt Split Point Stub Drill Bit SKU 8808 $2.48
• Approved Vendor #25 Cobalt Stubby Threaded Shank Drill Bit SKU 8809 $6.62
• Approved Vendor #25 HSS Black Oxide 135° Split Point Jobber Length Drill Bit SKU 8813 $4.17
• Drill America #25 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 8815 $0.72
• Approved Vendor #25 HSS Polished Jobber Length Drill Bit, D/AP Series SKU 8819 $1.24
• Approved Vendor #25 HSS Split Point Jobber Length Drill Bit, DWDSP Series SKU 8821 $1.09
• Approved Vendor #25 HSS Split Point Stub Drill Bit, D/AST Series SKU 8822 $1.24
• Approved Vendor #25 HSS Split Point Stub Drill Bit, DWDST Series SKU 8823 $1.04
• Approved Vendor #25 HSS Taper Length Drill Bit SKU 8825 $8.76
• Approved Vendor #25 Solid Carbide Drill Bit SKU 8826 $21.73
• Approved Vendor #25 Tin Coated Jobber Length Drill Bit SKU 8827 $4.76
• DeWalt #25 Wire Cobalt Jobber Length Drill SKU 115-DD4225B12 $2.44
• DeWalt #25 Wire Cobalt Screw Machine Length Drill SKU 115-DD4325B12 $2.24
• Approved Vendor #25 x 12" Cobalt Aircraft Extension Drill Bit SKU 8828 $12.47
• Drill America #25 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8829 $7.46
• Drill America #25 x 6" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8831 $2.77
• Approved Vendor #26 Carbide Tipped Jobber Length Drill Bit SKU 8832 $34.23
• Approved Vendor #26 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 8833 $2.57
• Drill America #26 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 8834 $1.88
• Approved Vendor #26 Cobalt Long Threaded Shank Drill Bit SKU 8835 $5.75
• Approved Vendor #26 Cobalt Split Point Stub Drill Bit SKU 8837 $2.48
• Approved Vendor #26 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 8839 $4.20
• Approved Vendor #26 HSS Black Oxide 118° Standard Point Jobber Length Drill Bit SKU 8841 $3.03
• Drill America #26 HSS Black Oxide Jobber Length Drill Bit, D/AN Series SKU 8843 $1.24
• Drill America #26 HSS Black Oxide Jobber Length Drill Bit, DWDN Series SKU 8844 $0.72
• Approved Vendor #26 HSS Cobalt 118° Standard Point Jobber Length Drill Bit SKU 8845 $6.54
• Approved Vendor #26 HSS Left Hand Jobber Length Drill Bit SKU 8846 $3.45
• Approved Vendor #26 HSS Polished 118° Standard Point Jobber Length Drill Bit SKU 8847 $4.60
• Approved Vendor #26 HSS Split Point Jobber Length Drill Bit, D/ASP Series SKU 8849 $1.42
• Approved Vendor #26 HSS Split Point Stub Drill Bit, D/AST Series SKU 8851 $1.24
• Approved Vendor #26 HSS Split Point Stub Drill Bit, DWDST Series SKU 8852 $1.04
• Approved Vendor #26 HSS Taper Length Drill Bit SKU 8854 $8.76
• Approved Vendor #26 Solid Carbide Drill Bit SKU 8855 $22.29
• Approved Vendor #26 Tin Coated Jobber Length Drill Bit SKU 8856 $4.76
• DeWalt #26 Wire Cobalt Jobber Length Drill SKU 115-DD4226B12 $2.44
• Drill America #26 x 12" HSS Aircraft Extension Drill Bit, DWDA/C SKU 8858 $7.46
• Approved Vendor #27 Carbide Tipped Jobber Length Drill Bit SKU 8861 $34.23
• Approved Vendor #27 Cobalt Jobber Length Drill Bit, D/ACO Series SKU 8862 $2.57
• Drill America #27 Cobalt Jobber Length Drill Bit, DWDCO Series SKU 8863 $1.88
• Approved Vendor #27 Cobalt Long Threaded Shank Drill Bit SKU 8864 $4.07
• Approved Vendor #27 Cobalt Short Threaded Shank Drill Bit SKU 8865 $4.25
• Approved Vendor #27 Cobalt Split Point Stub Drill Bit SKU 8866 $2.48
• Approved Vendor #27 Cobalt Stubby Threaded Shank Drill Bit SKU 8867 $4.30
• Approved Vendor #27 Cobalt Very Stubby Threaded Shank Drill Bit SKU 8868 $4.57
• Approved Vendor #27 Extra Long Cobalt Threaded Shank Drill Bit SKU 8869 $5.36
• Approved Vendor #27 HSS Black & Gold 135° Split Point Jobber Length Drill Bit SKU 8870 $4.20