Roughneck Scutch Chisel Blades 25mm (25) ROU31997 Scutch chisel blades are used in scutch comb holders when cutting and chipping masonry or brickwork.These Roughneck Scutch Chisel Blades are made from strong carbon steel, which is zinc coated for increased resistance to corrosion. They are contractor grade and come with a lifetime guarantee.Size: 25mm (1 inch). Pack of 5. ROU31997