INSIZE 4208 Series Small Hole Gauge

INSIZE 4208 Series Small Hole Gauge

Small hole gauge set for measuring narrow bores, slots and grooves too small for a standard telescoping gauge, with readings transferred to a micrometer.

Features

• Split-Ball Expanding Head - Expands to fit snugly in small bores and grooves
• Hardened Steel Construction - Maintains accuracy through repeated use
• Fine Adjustment Knurled Knob - Precise expansion control for a snug fit
• Set of Graduated Sizes - Covers a range of small bore diameters
• Pairs with an Outside Micrometer - Transfers the measured width for a precise final reading

How to Use

• Select the Correct Size - Choose the gauge closest to the bore or slot diameter
• Insert and Expand - Turn the adjustment knob to expand the head against the bore
• Feel for a Light Drag - Adjust until the gauge just contacts both sides evenly
• Remove and Measure - Measure across the gauge with a micrometer for the final reading

Specifications

Type: Small Hole Gauge Set
Material: Hardened Steel
Origin: China