The IRWIN Marples M2450 cabinet scrapers are made from high carbon steel, hardened and tempered to 470 vickers and polished to give a smooth finish. These scrapers have good edge retention but are easily resharpened. Available in the following sizes: MAR2450: 5in Rectangle (flat) 125mm. MAR2451: 6in Rectangle (flat) 150mm. Type: 5in rectangle (flat) 125mm.