2PCS8 Industrial tools:20 x Jigsaw Blade & 8 x Collet Chuck Adapter T101AO 4inch HCS T-shank Jigsaw Blades Used for cutting wood or plastic. Made of high quality high carbon steel, high toughness and sturdy. Item Condition: Strong & Durable: The high-quality materials show their high durability. Stable Performance: The product has a stable performance due to its unique precision and quality. Practical: It can help you make better, more efficient and more durable processing products.The chuck Can be converted into 6 handles, 6.35 handles and 8 handles. It's split bushing converters for multiple purposes of chuck or collet sutability. Processing by heat treatment and precise grinding, durable to use. Used for chuck conversion of trimming, engraving machines. Suitable for engraving machine, wood router.Collet Chuck Adapter only,perfect woodworking tool. Shank: T-Shank Colour:Silver + Black Material:High-carbon steel+metal Size:Length: 83mm Package Contents: 20 x Jigsaw Blade 1 x 0.24 inch / 6 mm Collet Chuck Adapter (with 1pcs 6mm/6.35mm universalnut) 1 x 0.25 inch / 6.35 mm Collet Chuck Adapter 1 x 0.32 inch / 8 mm Collet Chuck Adapter (with nut) 1 x 0.24 inch / 6 mm angle grinder chuck conversion 1 x 0.25 inch / 6.35 mm angle grinder chuck conversion 1 x 0.32 inch / 8 mm angle grinder chuck conversion