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 10

• Approved Vendor 1/2"-13 UNC HSS Left 4 Flute Taper Tap SKU 14823 $16.37
• Approved Vendor 1/2"-13 UNC HSS Plug Tap SKU 14824 $10.49
• 1/2"-13 UNC HSS Plug Tap, Tap America SKU 14825 $14.73
• Approved Vendor 1/2"-13 UNC HSS Taper Tap SKU 14826 $10.49
• 1/2"-13 UNC HSS Taper Tap, Tap America SKU 14827 $14.73
• 1/2"-13 UNC Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 14828 $32.57
• Approved Vendor 1/2"-13 UNC X 1" OD HSS Left Round Adjustable Die SKU 14830 $30.27
• Approved Vendor 1/2"-13 UNC X 1" OD HSS Round Adjustable Die SKU 14831 $12.70
• Approved Vendor 1/2"-13 UNC X 1-1/2" OD HSS Left Round Adjustable Die SKU 14832 $47.18
• Approved Vendor 1/2"-13 UNC X 1-1/2" OD HSS Round Adjustable Die SKU 14833 $20.46
• Approved Vendor 1/2"-13 UNC X 2" OD HSS Round Adjustable Die SKU 14834 $37.08
• Approved Vendor 1/2"-13 x 6" HSS Pulley Tap SKU 14841 $37.19
• Approved Vendor 1/2"-13 x 6" HSS Spiral Point Tap SKU 14842 $41.72
• Approved Vendor 1/2"-14 NPS 1-1/2" OD HSS Round Adjustable Pipe Die SKU 14955 $34.72
• Approved Vendor 1/2"-14 NPS 2" OD HSS Round Adjustable Pipe Die SKU 14956 $70.78
• Milwaukee 1/2"-14 NPT 2-1/6" Hex Threading Die SKU 495-49-57-5393 $25.10
• Approved Vendor 1/2"-14 NPT Carbon Steel Hex Pipe Die SKU 14957 $24.51
• Approved Vendor 1/2"-14 UNS HSS Plug Tap SKU 14958 $23.50
• Approved Vendor 1/2"-14 UNS X 1" OD HSS Round Adjustable Die SKU 14959 $33.01
• Approved Vendor 1/2"-16 UNS Carbon Steel Hex Die SKU 14960 $38.20
• Approved Vendor 1/2"-16 UNS HSS Plug Tap SKU 14961 $23.50
• Approved Vendor 1/2"-16 UNS X 1" OD HSS Round Adjustable Die SKU 14962 $33.01
• Approved Vendor 1/2"-18 UNS Carbon Steel Hex Die SKU 14963 $38.20
• Approved Vendor 1/2"-18 UNS HSS Plug Tap SKU 14964 $23.50
• Approved Vendor 1/2"-18 UNS X 1" OD HSS Round Adjustable Die SKU 14965 $33.01
• Approved Vendor 1/2"-20 Carbon Steel Hex Rethreading Die SKU 14969 $13.88
• Approved Vendor 1/2"-20 HSS Machine and Fraction Hand Bottoming Tap SKU 14998 $20.16
• Approved Vendor 1/2"-20 HSS Plug Tap and 29/64" HSS Drill Bit SKU 15001 $17.90
• Milwaukee 1/2"-20 NF 1-Inch Hex Threading Die SKU 495-49-57-5362 $9.25
• Approved Vendor 1/2"-20 STI Tap, High Speed Steel SKU 15005 $35.15
• Approved Vendor 1/2"-20 UNF Carbon Steel Hex Rethreading Die SKU 15007 $10.70
• Approved Vendor 1/2"-20 UNF Carbon Steel Left Hex Die SKU 15008 $19.77
• Approved Vendor 1/2"-20 UNF HSS 3 Flute Spiral Point Tap SKU 15011 $10.52
• 1/2"-20 UNF HSS 3 Flute Spiral Point Tap, Tap America SKU 15012 $16.05
• Approved Vendor 1/2"-20 UNF HSS Bottoming Tap SKU 15013 $10.49
• 1/2"-20 UNF HSS Bottoming Tap, Tap America SKU 15014 $15.55
• Approved Vendor 1/2"-20 UNF HSS Left 4 Flute Bottoming Tap SKU 15016 $16.37
• Approved Vendor 1/2"-20 UNF HSS Left 4 Flute Plug Tap SKU 15017 $16.37
• Approved Vendor 1/2"-20 UNF HSS Left 4 Flute Taper Tap SKU 15018 $16.37
• Approved Vendor 1/2"-20 UNF HSS Plug Tap SKU 15019 $10.49
• 1/2"-20 UNF HSS Plug Tap, Tap America SKU 15020 $15.55
• Approved Vendor 1/2"-20 UNF HSS Taper Tap SKU 15021 $10.49
• 1/2"-20 UNF HSS Taper Tap, Tap America SKU 15022 $15.55
• 1/2"-20 UNF Tin-Coated 3 Flute Spiral Point Tap, Tap America SKU 15023 $35.20
• Approved Vendor 1/2"-20 UNF X 1" OD HSS Left Round Adjustable Die SKU 15025 $30.27
• Approved Vendor 1/2"-20 UNF X 1" OD HSS Round Adjustable Die SKU 15026 $12.70
• Approved Vendor 1/2"-20 UNF X 1-1/2" OD HSS Left Round Adjustable Die SKU 15027 $47.18
• Approved Vendor 1/2"-20 UNF X 1-1/2" OD HSS Round Adjustable Die SKU 15028 $20.46

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