The Big Horn 8 Inch Inside Caliper is designed for accurately gauging internal dimensions and transferring measurements with precision. Built from forged steel, it features hardened points and a hardened fulcrum spring to maintain consistent performance through repeated use. The precision-ground threaded spool mechanism allows smooth, infinite adjustment for fine measurement control. Commonly used alongside precision rulers, this inside caliper is ideal for metalworking, woodworking, and shop measurement tasks that demand accuracy and repeatability.

Features:

• Measures internal diameters accurately and allows precise transfer of dimensions to a ruler or measuring scale.
• Provides clean and consistent marking with forged steel legs and hardened points for controlled contact with the workpiece.
• Allows fine and repeatable adjustment using a threaded spool mechanism that offers infinite setting control.
• Maintains uniform tension during use with hardened and tempered bow springs and fulcrum spools that prevent side play.
• Supports precision layout and measurement tasks in woodworking, metalworking, and general shop applications.