171 Pcs High Precision Measuring Steel Pin Gauge Set in Aluminum Box

1. These accurate precision tools are suited for checking the location, hole size, gage slots, the distance between holes, go & no-go gage, setting other gages and calibrating micrometers.

2. Each set furnished with case and every size gage holes clearly marked for size
Heat treated to a hardness of 60/62 RC
3. Size etched on each pin gage
4. Centerless lapped with 10 micro-finished
5. Uniform 2" overall length and have no sharp corners