COMPATIBILITY: Designed with a 5/8 in. shank to fit Delta products; also fits most brands of Mortisers and Drill Press Attachments. INCLUDED: One chisel and bit set. 1/2 in. square LONG-LASTING: Bits made of high-quality steel and resist overheating in heavy use. Chisels are made with bearing quality steel and are finely sharpened for a clean, consistent cut from one end of the tenon to the other; durable to last longer. DURABILITY: Mortise and tenon joints are exceedingly strong joints which also enhance the perception of the quality craftsmanship that went into creating the workpiece. VISIT OUR BRAND STORE: Explore a wide range of tools and hardware that will suit your everyday needs. From bandsaws boards to table saws, our brand store offers all.