Dormer HSS Drill Bit, 12.4mm Head, 3 Flute(s), 90°, 1 Piece(s)

Countersinks manufactured from premium quality high-speed steel for increased hardness/toughness, improved cutting edge strength and extended tool life. These counter sinks are designed for the production of 90° countersinks in most metals and features ground flats for positive location in 3-jaw chucks.

• Ground flats for positive location in 3-jaw chucks
• Universally suitable for many materials
• Can be used on soft ductile materials
• Manufactured from premium quality HSS