Bosch twist drill set hss din 338 polished hex shank 2 to 6mm 5 pcs bosch 2609255127 p these hss twist drill sets from bosch comply with din 338 and have a polished finish with hexagonal shanks p bosch 2609255127 twist drill set hss din 338 polished hex shank 2 to 6mm 5 pcs