Universal. Scrolls are forged, balanced and hardened. Thread flanks are ground on both sides. All models have grease nipples for easy lubrication and are supplied with two sets of solid jaws - internal and external stepped. Cast Iron 3 Jaw Plain Back Chuck DIN 6350 (form A). Three jaw plain back with adaptor recess. Model 003-204 Rear mounting. Model 003-274 Front mounting.