57-086 HSS-Co metal drill bits, 4.0 - 10 mm, 5 pcs.

Brand: NEO TOOLS

HSS-Co metal drill bits, 4.0 - 10 mm, 5 pcs. 57-086 by NEO TOOLS are deep ground drills according to DIN 338 and made of M2 steel. They use an apex angle of 135° and type C shear correction. The working part lengths are 4:43 mm, 5:52 mm, 6:57 mm, 8:75 mm, 10:87 mm and their overall lengths are 4:75 mm, 5:86 mm, 6:93 mm, 8:117 mm, 10:133 mm. Maximum speeds are: INOX 4: 925-1000 rpm, 5: 725-800 rpm, 6: 600-650 rpm, 8: 450-500 rpm, 10: 375-400 rpm, general metals 4: 1850-2000 rpm, 5: 1450-1600 rpm, 6: 1200-1300 rpm, 8: 900-1000 rpm, 10: 750-800 rpm. The purpose of this set by NEO TOOLS is versatile metal drilling.