Solid Carbide Drill, 8 mm Dia, 135 Deg Point Angle, TiAlN Coated, Plain Shank, Through-Coolant 121068- 121130 is necessary. Cutting chisel edge with high centring accuracy due to strong core and special point geometry. For process reliability when using the 12xD drill- an initial center drilling with NC spotting drills No.8 mm.
5 x DC.8 mm Overall length L: 124 mm Shank dia Ds: 14 mm Feed f in steel .5 mm Dia, 140 Deg Point Angle, AlTiN-Si Coated, Plain Shank Through-coolant: no Standard: DIN 6537 Tolerance nominal dia : m7 Number of cutting edges Z: 2 Tolerance nominal dia : m7 recommended maximum drilling depth L2: 56.
.5 x DC.5 mm Overall length L: 131 mm Shank dia Ds: 20 mm Feed f in steel A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and an extremely wear-resistant coating.