The DEWALT reciprocating bi-metal construction blades combine HCS and HSS for increased flexibility, durability and have been designed for use with cordless machines. The universal shank fits all major brands including DEWALT, Bosch, Hitachi, Flex, Makita, Metabo and Skil and these blades are ideal for fast cutting of metals, wood and plastics. The DEWALT DEWDT2346QZ reciprocating blades are ideal for use with ferrous and non-ferrous metals up to 3mm thick. DEWDT2346QZ