General description Sealey HSS Cobalt Fully Ground Drill Bit Set includes 25 pieces designed for drilling extra hard materials. The bits are made from fully ground HSS with 5% cobalt, ensuring durability and performance. The set is supplied in a sturdy metal storage case for easy organization and transport. Technical specifications Material: Fully ground HSS with 5% Cobalt Sizes: Ø1-13mm in 0.5mm increments Model No.: AK4702 Nett Weight: 1.36kg Other information