... :High Speed Steel Point Angle:118,135 HSS left hand twist drill bits fully ground DIN338 bright finishLeft hand drill bits ... hand drill range also extends to left hand centre drills and spotting drills.Manufacturing process: Fully groundMaterial:HSS#4241,HSS#4341,HSS ... :118,135Item Number:QX-HFL001Surface Finishing: Gold HSS left hand drills,fully ground,Amber finish,DIN338