Description Sealey Double Flute HSS 4341 Step Drill Bit Set comes with three high-speed HSS 4341 double flute step drills. Double straight flutes for efficient swarf clearance. Allows clog-free, precision drilling of 18 different size holes with just three bits. Size #1: Ø4-12mm. Size #2: Ø4-22mm in 2mm increments. Size #3: Ø4-30mm in 2mm increments. Supplied in flip-up metal case.
