Drill bit set Dormer Pramet HSS Tri-Flat

Drill bit set in a standard plastic cassette containing 21 intermediate‑size bits (mechanic’s length) with three‑flat shanks, A321, in diameters from 3.0 to 13.0 mm in 0.5 mm increments, manufactured according to Work Norm with a 135° cross‑ground tip. Made of HSS with steam‑ and bronze‑tempered surface treatment. Primarily suitable for handheld machines and pillar drills.