Starrett 657-2 Series 657 universal magnetic base indicator holder for dial indicators and inspection tools. Magnetic base provides secure attachment to ferrous surfaces for stable positioning in precision measurement setups. Designed for versatility in machining, quality control, and layout applications.

This versatile indicator holder has three pivots available for positioning the indicator where needed. All pivots are controlled by one tightening knob. Universal Indicator Holder with No. 657 Magnetic Base.

Features

• Works with any indicator with a 3/8 in stem
• Works with any indicator with a standard dovetail mount
• Works with any indicator with a 1/4 in shank
• Works with any indicator with a 3/16 in shank
• Works with any indicator with a body clamp
• The working area is within a hemisphere having a radius of approximately 12 in
• The very sensitive fine-adjustment is located on the magnetic base to eliminate indicator deflection when it is being adjusted
• Versatile indicator holder has three pivots available for positioning the indicator where needed
• All pivots are controlled by one tightening knob