INDEXABLE COUNTERBORES

FEATURES

Patriot HP PC-Series Indexable Counterbores were designed for machining standard inch and metric size counterbores in high production environments. The PC2 can counterbore and dual chamfer in one setup, the PC3 can back bore to reduce production time, and PC Inserts can achieve a true 90° bottom.

OFFER

• Diameters: 0.500” – 1.299”
• Functional Length: 1.345” – 2.720”
• PC1 Flute Count: 3
• PC2 Flute Count: 2, 3
• PC3 Flute Count: 1

FEATURES

• Socket head cap screw (SHCS) bore diameter range 0.562” – 0.750” (8mm – 20mm)
• Achieves a true 90° bottom
• PD1 proprietary insert is an economic choice with 4 cutting edges
• Counterbore and dual chamfer all in one set up with the PC2 
• Eliminates the need for a second operation when back boring with the PC3