Type 0141.4 HELICOIL® machine tap to create holding threads for HELICOIL® thread inserts with UNC threads as per NASM33527. The tap is suited for blind holes.

Properties:
• Spiral flute 45° right-hand spiral
• 2-pitch chamfer
• 15 % cutting angle
• For wrought aluminium alloys with 500 N/mm² strength max.
• Also for cast aluminium alloys with very low Si content (= 2 %)
• Tolerance class 2B

Note:
• Up to UNC 8-32 2-flute
• From UNC 10-24 3-flute and additionally for soft steels with 450 N/mm² strength max.

Thread type:

UNC

Product group:

Accessories

Product type:

0141.4