Robert Sorby has two dedicated shear scrapers - one for internal work, the second for external finishing. Both feature a 3/8" square shank which sits firmly on the tool rest and presents the cutter at 45º to the workpiece when used in each direction. Each cutter can be re-positioned several times before the need for re-sharpening which is done by honing on the top face. Spare HSS cutters are available.

The internal shear scraper (826H) features a round cutter whilst the external shear scraper (827H) has a square cutter. These cutters are fully interchangeable so anyone having the internal shear scraper (826H) can fit the external cutter (827C) and vice versa.

The unique 3/4" semi-circular shank allows the cutter to be used 45º to achieve shear scraping.