Spiral Flute HSS 4341 Step Drill Bit Set 3pc

• Three high-speed HSS 4341 double spiral flute step drills. • Double spiral 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 a flip-up metal case.