Dormer Plain Slot Drill, 4.5mm Cut Diameter - C123-4.50

ISO 1641 and DIN 844 K B. HSCo centre cutting slot drills C102 and C123. A range of short cobalt drills (steel quality HSCo 8% Co) with cylindrical shank and flat face. The shank diameter tolerance class is H6 and the cutting diameter is E8. Helix geometry is 30° right-handed, the cut angle is 12° and the cut is centred. C123 drills are available in Ø 2 mm to 6 mm, and from Ø 6.5 mm for C102. Used to cut grooves to P9 tolerance.