Our broadhead sharpener is specifically designed for the blade angle of Tooth of the Arrow 4-blade broadheads. Our broadhead sharpening jig works with both 1-inch and 1-3/16-inch diameter Tooth of the Arrow 4-blade broadheads. The single-bevel requires a flat stone sharpener. Our Sharpeners are comprised of a plastic injected base with two 6-inch offset, 320 grit stones. The tooth of the Arrow broadhead sharpening jig is recommended to be used with honing oil.