Did you know Sphinx offers 3 unique drill/reamer geometries capable of drilling from a solid while achieving H7-H9 hole tolerance with exceptionally good surface finish?
Premium High-Speed Steel (HSS) micro cutting tools containing roughly 5% Cobalt for applications requiring a low-cost solution with the strength to withstand unusually high cutting forces.
A pilot or spot drill, also known as a starter drill, is typically required when the succeeding drill is longer than 10xD or smaller than Ø 1.00 mm. Starter drills can also be used to improve hole location due to their short, rigid geometries.