GUHRING Spiral drill DIN1898A HSS conical 4.0mm

Taper pin drill cyl. shank, HSS, DIN 1898/1, type NDesign: HSS, DIN 1898/1, type N. Right cutting, surface from Ø 3 mm steam tempered, with precision ground point. Point thinning according to DIN 1412, form A, Normal angle of rake, core thickness and core gradient. Application: For producing conical holes 1:50 in one step for conical pins according to ISO 2339 (DIN 1) and ISO 8736 (DIN 7978). Note: Further dimensions available on request.