Makita D-64303 HSS-Tin Metal Drill 3.5-70 10Pcs
HSS-TIN Metal Drill Bit 3.5-70 10PCS (D-64303) drill bits with 5% cobalt content and high-temperature brazing for easy drilling of high alloy or high tensile steels. Body ground for further accuracy and to reduce resistance. Use on mild, stainless, and high alloy steels and difficult to machine materials, welded seams, and car bodywork. Ideal for stainless steel and aluminum.