Type 0141.5 HELICOIL® machine tap to create holding threads for HELICOIL® thread inserts with UNF threads as per NASM33527. The tap is suited for blind holes and blind holes with a deeper tap hole.
Properties: • Spiral flute 40° right-hand spiral • 2-pitch chamfer • 10 % cutting angle • For steels with 500–850 N/mm² strength • Also for cast aluminium alloys with an Si content up to 10 % • Tolerance class 2B