Sealey AK4744 HSS 4341 Step Drill Bit 4-22mm Double Flute High-speed HSS 4341 double straight flute step drill. Double straight flutes for efficient swarf clearance. Allows clog-free precision drilling. Supplied in plastic storage case. AK4744 Features High-speed HSS 4341 double straight flute step drill Double straight flutes for efficient swarf clearance Allows clog-free precision drilling of ten different size holes between 4-22mm with just one bit Supplied in plastic storage case AK4744 Specification Model No AK4744 Brand: Sealey Nett Weight: 0.07kg Size Coverage: #2; 4, 6, 8, 10, 12, 14, 16, 18, 20, 22mm What is included: 1 x Sealey AK4744 HSS 4341 Step Drill Bit 4-22mm Double Flute