Indexable Positive Rake Coolant Fed Chamfering Countersink The 1PC-030-C Indexable Countersink is a reliable and precise tool for creating chamfers up to 1.9 inches in size. Its 3/4 inch shank provides a secure holder for the cutting head, reducing vibration and ensuring accuracy. It is an ideal choice for industrial millwork. For use with 1 standard insert. Up to 5x faster than high speed tools. Features include... 3/4" Shank 0.27" Max Depth of Cut Compatible Insert Style: SPGH Compatible Insert Code: 433 100° Angle