Type 0141.4 HELICOIL® machine tap to create holding threads for HELICOIL® thread inserts with metric normal and fine screw threads as per DIN 8140-2. The tap is suited for blind holes.
• 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 5H (6H mod.)