Dormer Plain Slot Drill, 20mm Cut Diameter

ISO 1641 and DIN 844 L B

These slot drills have a parallel shank with flats, diameter tolerance e8 (undersize h10), 3 flute, short length, centre cutting, 30° spiral, HSCo 8%. They are to DIN327 form D. Applications include keyway and slot milling, and production of closed slots by ’plunge’ feeding.