Fowler High Precision Includes 1" indicator and mag base, plus rods, swivel clamp and case. The 2-1/4" diameter .001" indicator features: satin chrome finish, tolerance hands, lug back and revolution counter. The 6" high mag base features a 1.5" x 1.5" x 1.75" 50 lb. pull base and a 4.5" long sidearm. All exposed metal is finished in anodized black for corrosion resistance. Includes shop-hardened case.