32 Pcs,Block Gauge Set,0 /1 Grade,High Speed Steel ,Tools For Carpenter,Inspection And Measurement,Custom Gauge Available ,Easy to Use

All block gauges are made of the high speed steel All gauge block sets are assigned serial numbers and are accompanied with a certificate of inspection listing the deviation for each block Complete with manufacturer's calibration or certification All gauge block sets are made to special standards to resist corrosion and defacement Manufactured under carefully controlled conditions allowing for the highest degree of accuracy when used at a temperature of 68 degrees F ( 20 degree C)