Developed by the gunsmithing students at Yavapai College. Solid aluminum, milling-vise fixture securely holds all models of 1911 Auto slides in four different positions for more precise milling of low-mount sight dovetails, extractor rollover cuts, front cocking serrations, French side cuts, ejection port lowering, 1° comp cuts plus, it makes a convenient, easy-to-hold handle for power-sanding and polishing. SPECS: Aluminum. 5ѕ' (14.6cm) long, 2' (10cm) wide, 1 lb. 10 oz. (759g) wt. Includes complete instructions.