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 16
- Alfa Tool 12 X 1.75mm HS Usa Spiral Pointed Tap SKU SPTM170168 $21.52
- Approved Vendor 12-24 Carbon Steel Hex Rethreading Die SKU 18169 $9.99
- Alfa Tool 12-24 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170917 $13.90
- Alfa Tool 12-24 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170917 $13.90
- Alfa Tool 12-24 HSS Combination Drill Tap 1/4 Hex Shank SKU DTML66106A $24.46
- Alfa Tool 12-24 HSS Eco Spiral Pointed Tap SKU SPT270117 $5.78
- Approved Vendor 12-24 HSS Machine and Fraction Hand Bottoming Tap SKU 18172 $8.99
- Approved Vendor 12-24 HSS Machine and Fraction Hand Plug Tap SKU 18173 $8.99
- Approved Vendor 12-24 HSS Machine and Fraction Hand Taper Tap SKU 18174 $8.99
- Alfa Tool 12-24 HSS Usa Spiral Pointed Tap SKU SPT170117 $8.52
- Milwaukee 12-24 NC 1-Inch Hex Threading Die SKU 495-49-57-5330 $9.25
- Approved Vendor 12-24 UNC X 1" OD HSS Left Round Adjustable Die SKU 18175 $30.27
- Alfa Tool 12-28 HSS Alfa Usa Spiral Fluted Tap SKU SFTP170918 $13.90
- Alfa Tool 12-28 HSS Alfa Usa Spiral Fluted Tap Bottoming SKU SFTB170918 $13.90
- Alfa Tool 12-28 HSS Combination Drill Tap 1/4 Hex Shank SKU DTML66106B $24.46
- Alfa Tool 12-28 HSS Eco Spiral Pointed Tap SKU SPT270118 $5.78
- Approved Vendor 12-28 HSS Machine and Fraction Hand Bottoming Tap SKU 18180 $8.99
- Alfa Tool 12-28 HSS Usa Spiral Pointed Tap SKU SPT170118 $8.52
- Alfa Tool 12PC . Carbon Steel NPT Tap & Die Set SKU TDS66012NPT $234.74/pack of 12
- Approved Vendor 13/16" 3MT Spiral Flute Car Reamer SKU 18238 $71.33
- Approved Vendor 13/16" HSS 3MT Spiral Flute Bridge Reamer SKU 18252 $76.66
- Approved Vendor 13/16" HSS Spiral Flute Hand Expansion Reamer SKU 18263 $227.33
- Approved Vendor 13/16" HSS Spiral Flute Hand Reamer SKU 18264 $79.02
- Approved Vendor 13/16"-16 UNS HSS Plug Tap SKU 18314 $39.62
- Approved Vendor 13/16"-16 UNS X 2" OD HSS Round Adjustable Die SKU 18315 $111.15
- Approved Vendor 13/16"-18 UNS HSS Plug Tap SKU 18316 $39.62
- Approved Vendor 13/16"-20 UNS HSS Plug Tap SKU 18317 $39.62
- Approved Vendor 13/16"-32 UNS HSS Plug Tap SKU 18318 $39.62
- Approved Vendor 13/16"-32 UNS X 1-1/2" OD HSS Round Adjustable Die SKU 18319 $51.96
- Alfa Tool 13/16-28 HSS Special Thread Tap Bottoming SKU HTSPB71382 $60.24
- Alfa Tool 13/16-32 HSS Special Thread Tap Bottoming SKU HTSPB71383 $60.24
- Approved Vendor 13/32" HSS Spiral Flute Hand Expansion Reamer SKU 18358 $158.37
- Alfa Tool 14 X 1.25mm HSS Metric Tap Bottoming Eco Pro SKU HSMTB271036 $23.22
- Alfa Tool 14 X 1.5mm HS Usa Spiral Pointed Tap SKU SPTM170171 $35.42
- Alfa Tool 14 X 1.5mm HSS Metric Tap Bottoming Eco Pro SKU HSMTB271035 $23.22
- Alfa Tool 14 X 2.0mm HS Usa Spiral Pointed Tap SKU SPTM170170 $35.42
- Milwaukee 14-20 NS 1-Inch Hex Threading Die SKU 495-49-57-5333 $9.25
- DeWalt 14PC Frac Tap & LG Hexagon Die Set SKU 115-DWA1452 $116.27/pack of 14
- Approved Vendor 15/16" 3MT Spiral Flute Car Reamer SKU 18539 $81.40
- Approved Vendor 15/16" HSS 3MT Spiral Flute Bridge Reamer SKU 18552 $87.47
- Approved Vendor 15/16" HSS Spiral Flute Hand Expansion Reamer SKU 18563 $247.65
- Approved Vendor 15/16" HSS Spiral Flute Hand Reamer SKU 18564 $98.42
- Approved Vendor 15/16"-16 UNS Carbon Steel Hex Die SKU 18616 $47.38
- Approved Vendor 15/16"-20 UNS Carbon Steel Hex Die SKU 18618 $47.38
- Approved Vendor 15/16"-20 UNS HSS Plug Tap SKU 18619 $47.54
- Approved Vendor 15/16"-20 UNS X 2" OD HSS Round Adjustable Die SKU 18620 $111.15
- Alfa Tool 15/16-12 HSS Special Thread Tap Bottoming SKU HTSPB71393 $66.54
- Alfa Tool 15/16-16 HSS Special Thread Tap Bottoming SKU HTSPB71394 $66.54