Metal drill bit set hss g with 14 hex shank manufactured to din 312 e 3 precise metal drill bit for direct insertion in 14 hexagonal fitting this makes drilling with the cordless screwdriver really easy without having to change the screwdriver bit fast drilling rate and self centring split point drill tip with high true running precision suitable for metal cast iron cast steel and hard plastics precision ground metal drill bit made of high speed steel drill bit colour polished