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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.
UNEF (Unified extra fine)

Hand Tap Bottoming ISO 529 Form C HSS-G - UNEF 3/4 x 20

Item no. 83829-3

€21.00

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 Unified Extra Fine Thread
Standard ISO 529
Form Form C
Material HSS-G
Tolerance 2B
Size UNEF 3/4 x 20
Overall length (L1) 112 mm
Thread length (L2) 37 mm
Core hole diameter (D1) 17.75 mm
Shank diameter (D2) 14.0 mm
Drive connector 11.2 mm
Item number 83829-3
Type of flute straight fluted
Application for blind holes
Thread standard ANSI B 1.1

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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