/ Precision Measuring Tools / Precision Hand Tools / Precision Shop Tools / Surface Gages / 57B * Not actual product image 50293 57B Full-sized Surface Gage 50293 Other similar products Starrett Surface Gages are designed for a wide variety of uses. This is a basic tool for machinists and toolmakers. The main uses are for accurately scribing lines, transferring measurements and for probing surfaces in inspection work. (2) 9"/12" Spindle. Features Specifications Parts Contact Starrett Features Full-size surface gage with attractive finish Two frictionally held gage pins in the steel base which can be pushed down and used against the edge of a surface plate or T-slot for linear work Specifications Spindle Length (in): 9" & 12" Spindle Length (mm): 225 & 300mm Base Size (in): 3 x 2-9/16" Base Size (mm): 75 x 65mm Parts Member of Kit Item #DescriptionPart No.QtyInformation 1BASE #57-918015-01 2SNUG ASSEMBLYPT187181 3•SLEEVE, SCRIBER18722-01 4•SNUG,SCRIBER18720-01 5•BOLT, SCRIBER #5718721-01 6•NUT, .187-3201854-01 7•WSHR,.187X.471X.05018723-01 8•SPRING, .259X.315X.313X.028X301875-01 9SPINDLE, #57BPT991231 10•SPINDLE, 12"01835-01 11•SCREW, .140-40 SLOT X .281 LONG01883-01 12SPINDLE, #57APT991221 13•SPINDLE, 9"01834-01 14•SCREW, .140-40 SLOT X .281 LONG01883-01 15SLEEVE, SPINDLE COMP07800-A1 16•BOLT, SPINDLE #57-907800-01 17•WSHR,.188X.682X.18701847-01 18•WSHR,.157X.432X.06201882-01 19•SPRING, .178X.248X.500X.035X401859-01 20•NUT, .157-4001873-01 21SCRIBERPT165891 22ROCKER18009-01 23SPRING, .205X.291X.875X.043X701869-02 24SCREW, .157-40 THUMB X .750 LONG08254-01 25ROC FULCRUM, .312-4018011-01 26PIN, BASE GUIDEPT018772 27WSHR,.188X.437X.03118012-01