Jon Bhandari Tools Half Round File are most commonly used to deburr or remove material from the inside surfaces of cylindrical workpieces or to cut half round grooves. Though it has multiple uses from sharpening, shaping, stock-removal and deburring jewellery, clocks, watches, soft-metal, etc. Ideal for rounding out holes, can be used on concave, convex or flat surfaces and leaves a smooth finish. PVC handle gives you a comfortable, non slip grip for controlled speed and pressure with every stroke.