Starrett 57D Full-sized Surface Gage, 12" & 18"/300 & 450mm Spindle Length, 3-3/4 x 3-3/8" / 95 x 85mm Base Size

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) 12"/18" 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
• 12 in and 18 in L spindle
• 3-3/4 in L x 3-3/8 in W base
• 3/8 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