Burghiu spiral Format 11150080, 9111150080

180° multi-chamfer subland drill for through holes

Design:Profile grinding, right cutting, with precision ground point. Normal angle of rake, core thickness and core gradient. Drilling and countersinking are produced in a single step, aligned to each other. Ø Tolerance: d1 = h9 d2 = h8 Note: The cutting speed is orientated towards the large diameter, the feed towards the small diameter.

Design: DIN 8376, 180° countersink angle, medium. Application: For screw through holes according to DIN EN 20273 and 180° screw head countersinking. Form H, J and K according to DIN 84, DIN 912, DIN 6912, DIN 7513 and DIN 7984. With Morse taper shank DIN 8377 or VHM design available on request.