Ring gages used to check external thread, plug gages used to check internal thread.
GO & NOGO, RH(right hand) & LH(left hand) available
Material:Oil hardened tool steel-Gcr15, high wear resistance.Hardness: 58-62 HRC
Tolerance: Plug gauge Standard Tolerance 6H & ring 6g, accept customized tolerance
Plug gauge thread class: 4H,5G,5H,6G,6H,7G,7H
Ring gauge thread class: 4h,5g,5h,6g,6h,6e, 7h
Also can be double tolerance,like 4H5H,4h5h
Certificate:Standard size we can provide factory quality certificate,and customzied size we can provide test data report,also can provide calibrate certificate.
Package:We provide uniform measuring tool box.
Delivery time:Metric ring gauges size from M2-M150 have in stock,can delivery in 3workdays,and customized size need 15-25workdays.
