General description Sealey Double Flute HSS 4341 Step Drill Bit 4-22mm is designed for efficient and clog-free precision drilling. This high-speed drill bit features double straight flutes that enhance swarf clearance, making it ideal for various drilling tasks. Technical specifications Material: High-speed HSS 4341 Hole Sizes: 4-22mm in 2mm increments Model No.: AK4744 EAN: 5054511002607 Storage Supplied in a plastic storage case for easy organization and transport. Other information