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UNF HSS

HSS Tap UNF Taper-1/4x28 carded

Product Code: CUNFHT14

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Key Features
Precision manufactured in Europe to ISO529 standards
Suitable for hand and machine operation, and are suitable for production
2N Tolerance for optimum thread fit
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Technical Specifications
Brand ALPHA
Subcategory UNF HSS
Type of Measure UNF
Diameter (in) 1/4
Drill Size (mm) 5.5
Head Type Taper
Material HSS
OAL (mm) 66
TPI 28
Barcode 9342386046878
Category UNF HSS
Longest side (mm) 167.00
Median side (mm) 50.00
Shortest side (mm) 12.00
Order Quantity 1
  • Alpha HSS Hand Taps are precision manufactured in Europe to ISO529 standards.
  • HSS Hand Taps are general purpose taps suitable for hand and machine operation, and are suitable for production use.
  • 2N Tolerance for optimum thread fit that balances fastener performance, manufacturing, economy and convenience.
  • Suitable for use in Steel, Aluminium, Copper, Brass etc.
  • Always use lubricant. Click here for our range.

TAPER taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes. Alpha Taper taps can be identified by the single ring on the shaft near the driving square.

  • Diameter: 1/4mm
  • Pitch: 28mm
  • Overall length: 50mm
  • Shaft Diameter: 6mm
  • Drive Square: 4.9mm
  • Tapping Drill Size: 5.50mm
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