57-048-5 HSS-Co metal drill bits 8.5 mm, 5 pcs.

Brand: NEO TOOLS

HSS-Co 8.5 mm metal drill bits, 5 pcs. 57-048-5 by NEO TOOLS are deep ground drills according to DIN 338 and made of M35 steel with 5% cobalt addition. They use an apex angle of 135° and type C shear correction. They have a cylindrical handle. The length of the working part is 75 mm and their overall length is 117 mm. The maximum speeds are: INOX 425-475 rpm, general metals 850-950 rpm. The purpose of this set by NEO TOOLS is to drill in demanding materials such as stainless, acid-resistant and heat-resistant steel.