IRWIN Tools M444/S4N 4-Piece Construction Chisel Set (1/4-inch, 1/2-inch, 3/4-inch and 1-inch) (1819361) Manufactured from solid-forged, high-carbon steel, hardened and tempered under controlled conditions and precision-ground for accurate control. Square handles with rounded corners add comfort and prevent rolling. Best Suited for hand or mallet work. Constructed with indestructible polypropylene to withstand a heavy mallet or hammer blow.\ 4-piece chisel set includes 1/4-inch, 1/2-inch, 3/4-inch, and 1-inch chisels. Marples chisels have been the industry leader for woodworkers for nearly 200 years. Backed by the IRWIN lifetime guarantee.