Taps & Dies
2,000+ products
Expected delivery: Wed, Nov 18
Taps cut internal threads and dies cut external threads. Maintenance techs use them to repair stripped holes and chase damaged threads, and machine shops use them in production. This section covers hand taps in taper, plug and bottoming styles, spiral point (gun) taps for through holes, spiral flute taps for blind holes, NPT pipe taps, thread-forming taps, round adjustable dies, hex rethreading dies, tap wrenches, die stocks and tap and die sets. Threads include UNC, UNF, metric and NPT.
What to check before you order
- Thread size and pitch. Confirm the exact size, for example 1/4"-20 or M6 x 1.0. Our thread sizes guide explains the callouts.
- Hole type. Spiral point taps push chips forward and suit through holes. Spiral flute taps pull chips out and suit blind holes.
- Tap drill. Drill the correct tap drill size first. Too small a hole is a common cause of broken taps.
- Material. HSS taps cover most work. Cobalt or coated taps help in stainless and tougher alloys. Always use tapping fluid in steel.
- Pipe threads. NPT taps are tapered, so tap depth controls the fit.
Common questions
What size drill do I need for a 1/4-20 tap?
A #7 drill is the common choice for about 75 percent thread engagement in a 1/4"-20 hole.
See drill bits, the Alfa Tool line, and all cutting tools.
Taps & Dies: page 28
- Approved Vendor 5/8"-11 UNC Carbon Steel Left Hex Die SKU 25816 $25.87
- Approved Vendor 5/8"-11 UNC HSS 3 Flute Spiral Point Tap SKU 25819 $22.94
- 5/8"-11 UNC HSS 3 Flute Spiral Point Tap, Tap America SKU 25820 $33.08
- Approved Vendor 5/8"-11 UNC HSS Bottoming Tap SKU 25821 $20.48
- 5/8"-11 UNC HSS Bottoming Tap, Tap America SKU 25822 $29.88
- Approved Vendor 5/8"-11 UNC HSS Left 4 Flute Bottoming Tap SKU 25824 $29.68
- Approved Vendor 5/8"-11 UNC HSS Left 4 Flute Plug Tap SKU 25825 $29.68
- Approved Vendor 5/8"-11 UNC HSS Left 4 Flute Taper Tap SKU 25826 $29.68
- Approved Vendor 5/8"-11 UNC HSS Plug Tap SKU 25827 $20.48
- 5/8"-11 UNC HSS Plug Tap, Tap America SKU 25828 $29.88
- Approved Vendor 5/8"-11 UNC HSS Taper Tap SKU 25829 $20.48
- 5/8"-11 UNC HSS Taper Tap, Tap America SKU 25830 $29.88
- 5/8"-11 UNC Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 25831 $58.77
- Approved Vendor 5/8"-11 UNC X 1-1/2" OD HSS Left Round Adjustable Die SKU 25833 $47.18
- Approved Vendor 5/8"-11 UNC X 1-1/2" OD HSS Round Adjustable Die SKU 25834 $20.46
- Approved Vendor 5/8"-11 UNC X 2" OD HSS Left Round Adjustable Die SKU 25835 $100.89
- Approved Vendor 5/8"-11 UNC X 2" OD HSS Round Adjustable Die SKU 25836 $37.08
- Approved Vendor 5/8"-11 x 6" HSS Pulley Tap SKU 25839 $49.66
- Approved Vendor 5/8"-11 x 8" HSS Pulley Tap SKU 25843 $63.51
- Approved Vendor 5/8"-12 UNS HSS Plug Tap SKU 25917 $27.28
- Approved Vendor 5/8"-12 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 25918 $51.96
- Approved Vendor 5/8"-16 UNS Carbon Steel Hex Die SKU 25923 $40.26
- Approved Vendor 5/8"-16 UNS HSS Plug Tap SKU 25924 $27.28
- Approved Vendor 5/8"-18 Carbon Steel Hex Rethreading Die SKU 25927 $17.44
- Approved Vendor 5/8"-18 HSS Machine and Fraction Hand Bottoming Tap SKU 25945 $38.73
- Approved Vendor 5/8"-18 HSS Machine and Fraction Hand Plug Tap SKU 25946 $38.73
- Approved Vendor 5/8"-18 HSS Machine and Fraction Hand Taper Tap SKU 25947 $38.73
- Approved Vendor 5/8"-18 HSS Plug Tap and 37/64" HSS 1/2" Shank Drill Bit SKU 25948 $38.84
- Approved Vendor 5/8"-18 STI Tap, High Speed Steel SKU 25952 $48.99
- Approved Vendor 5/8"-18 UNF Carbon Steel Hex Rethreading Die SKU 25954 $13.45
- Approved Vendor 5/8"-18 UNF Carbon Steel Left Hex Die SKU 25955 $25.87
- Approved Vendor 5/8"-18 UNF HSS 3 Flute Spiral Point Tap SKU 25958 $22.94
- 5/8"-18 UNF HSS 3 Flute Spiral Point Tap, Tap America SKU 25959 $33.08
- Approved Vendor 5/8"-18 UNF HSS Bottoming Tap SKU 25960 $20.48
- 5/8"-18 UNF HSS Bottoming Tap, Tap America SKU 25961 $29.88
- Approved Vendor 5/8"-18 UNF HSS Left 4 Flute Bottoming Tap SKU 25963 $29.68
- Approved Vendor 5/8"-18 UNF HSS Left 4 Flute Plug Tap SKU 25964 $29.68
- Approved Vendor 5/8"-18 UNF HSS Left 4 Flute Taper Tap SKU 25965 $29.68
- Approved Vendor 5/8"-18 UNF HSS Plug Tap SKU 25966 $20.48
- 5/8"-18 UNF HSS Plug Tap, Tap America SKU 25967 $29.88
- Approved Vendor 5/8"-18 UNF HSS Taper Tap SKU 25968 $20.48
- 5/8"-18 UNF HSS Taper Tap, Tap America SKU 25969 $29.88
- 5/8"-18 UNF Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 25970 $58.77
- Approved Vendor 5/8"-18 UNF X 1-1/2" OD HSS Left Round Adjustable Die SKU 25972 $47.18
- Approved Vendor 5/8"-18 UNF X 1-1/2" OD HSS Round Adjustable Die SKU 25973 $20.46
- Approved Vendor 5/8"-18 UNF X 2" OD HSS Left Round Adjustable Die SKU 25974 $100.89
- Approved Vendor 5/8"-18 UNF X 2" OD HSS Round Adjustable Die SKU 25975 $37.08
- Approved Vendor 5/8"-18 x 6" HSS Pulley Tap SKU 25977 $49.66