Precision Telescopic Gauge Set T-Bore Gauge 5/16-6 Inch with Bag 6 Pieces

Feature:
T-hole gauges are made of high quality steel and are robust and durable
Spring with knurled locking knob and knurled fixing area
For obtaining the exact dimensions of holes and slots
Rigid handle and double-action design (self-centering) for quick checking of internal measurements

Specification:
Color: Silver
Material: Stainless Steel
Range:
5/16 - 1/2 Inch range x 4.20 inch overall
1/2 - 3/4 Inch range x 4.40 inch overall
3/4 - 1-1/4 Inch range x 4.40 inch overall
1-1/4 - 2-1/8 Inch range x 5.85 inch overall
2-1/8 - 3-1/2 Inch range x 5.85 inch overall
3-1/2 - 6 Inch range x 5.85 inch overall

How to use:
Use a gauge to expand in the hole to be measured, lock it in place, then remove, measure with a micrometer or caliper to determine the final hole size

Package includes:
6 x telescopic gauges
1 x Bag