Double Spiral HSS 4341 Step Drill Bit 4-22mm

• High-speed HSS 4341 double spiral flute step drill. • Double spiral flutes for efficient swarf clearance. • Allows clog-free precision drilling of ten different size holes between 4-22mm with just one bit. • Hole Sizes: 4-22mm in 2mm increments. • Supplied in plastic storage case.