Countersinks

3PC ZERO FLUTE 1/4IN HEX COUNTERSINK BIT SET

Champion Cutting Tool

CBCSK-SH-SET

CSK-SH-SET

846035084659

#6 COUNTERSINK W/ 9/64IN DRILL BIT

DeWalt

DW2567

DW2567

028874025677

3-Flute Countersink Bits

Champion Cutting Tool

Metal Countersink Bits

Irwin Tools