Burghiu spiral Format 10640250, 9110640250

Extra-short sheet metal drills cyl. shank Design: Similar to DIN 1897. Profile grinding , right cutting, with precise, double-sided ground point. With small cross-cutting and curved grinding around the circumference (no bevels). Point thinning according to DIN 1412, form A, Normal angle of rake, core thickness and core gradient. Application: For drilling thin-walled materials without punch marking. Especially suitable for bodywork and metal construction, rivet holes, screw holes, etc. as well as for use in hand drills. Note: Further dimensions available on request.