Featuring a removable twist off end cap for easy & convenient storage of linoleum cutters, these durable hard plastic, comfort grip handles are designed to a premium standard. Hand-adjustable metal chuck makes changing out linoleum cutters a breeze ! Speedball linoleum cutters are crafted from high quality steel and are hand-ground and honed. They are precisely sharpened to provide optimal cutting edges. They are ideal for carving both traditional linoleum as well as soft block substrates.