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Technical drawing of a VÖLKEL thread tap with labeled diameters and lengths.
Technical drawing of a VÖLKEL thread tap with labeled diameters and lengths.
Tr (trapezoidal thread)

Hand Tap Finisher HSS-G - Tr 20 x 4

Item no. 25136-3

€249.00

in stock - more than 10 pieces available
Application

Application:

for general use

  • non abrasive material up to 900 N/mm²
  • unalloyed and low alloyed steel
  • for through and blind holes
  • for thread cutting by hand
Additional information
Type of thread metric ISO- trapezoidal thread
Standard DIN
Material HSS-G
Tolerance 7H
Size Tr 20 x 4
Overall length (L1) 160 mm
Thread length (L2) 55 mm
Core hole diameter (D1) 16.25 mm
Shank diameter (D2) 14.0 mm
Drive connector 11.0 mm
Item number 25136-3
Type of flute straight fluted
Application for through and blind holes
Thread standard DIN 103

Application:

for general use

  • non abrasive material up to 900 N/mm²
  • unalloyed and low alloyed steel
  • for through and blind holes
  • for thread cutting by hand
Die visible through a larger die.
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