Starrett 57A full-sized surface gage with cast iron base and black wrinkle finish for stability and durability. The 9" (225 mm) spindle and 3 x 2-9/16" (75 x 65 mm) base provide a rigid platform for scribing lines and transferring measurements in machining and inspection applications.

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. 9" Spindle.

Features

• Full size surface gage with attractive finish
• Base is ground flat with 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
• Designed for a wide variety of uses
• 9 in L spindle
• 3 in L x 2-9/16 in W base
• 5/16 in snug
• The new style snug at the top of the spindle comes standard with these tools
• Ground bases for accurate reference surfaces
• V-Groove in the base for cylindrical work
• V-Groove on the front end which allows the spindle to adjust to any angle above or below the base
• A very positive fine adjustment through a rocker arm that makes for smooth and accurate settings
• Grooves on the side of the base for a sure and easy grip
• Nicely tapered scribers, so that you can see what you are doing