Bosch twist drill set hss g din 338 straight shank bosch 2607010538 these hss g twist drills from bosch comply with din 338 and have straight shanks 13 piece robust line metal drill bit set hss g 135 15 2 25 3 32 35 4 45 4 8 5 55 6 65mm bosch 2607010538 twist drill set hss g din 338 straight shank 15 65mm 13 pcs