Detailed Description  Model(minus) Model(plus) Range No. of gages   GP-M0M GP-M0P 0.011" to 0.060" 50  GP-M1M GP-M1P 0.061" to 0.250" 190  GP-M2M GP-M2P 0.251" to 0.500" 250  GP-M3M GP-M3P 0.501" to 0.625" 125  GP-M4M GP-M4P 0.626" to 0.750" 125  GP-M5M GP-M0P 0.751" to 0.832" 82   GP-M6M GP-M1P 0.833" to 0.916" 84  GP-M7M GP-M2P 0.917" to 1.000" 84 *when you order pins gauge set,just tell us size,Minus or plus. Plain Plug Gages Library Series Model(plus) Model(minus) Range No. of gages   INCH LIBRARY SERIES GPS-M1-2p GPS-M1-2M 0.061"to.500" 440 GPS-M1-4p GPS-M1-4M 0.061"to.750" 690 GPS-M1-7p GPS-M1-7M 0.061"to1.000" 940 Plain Plug Gages DIN 2269 Features:  *Go(Plus) or No-Go(Minus) *Gcr15 Steel : 60/62 HRC *Accuracy : ±0.002mm, ±0.001mm or±0.0005mm *50mm Long Uses: *Checking locations * Measuring hole sizes and depths * Go and No-Go gauging *Setting micrometers. * Checking distances between holes.  Model No. Range Step No. of gages Model No. Range Step No. of gages  GM-00 0.30-1.00mm 0.01mm 71 GM-12 4.02-6.00mm 0.02mm 100 GM-01 1.01-2.00mm 0.01mm 100 GM-13 6.02-8.00mm 0.02mm 100 GM-02 2.01-3.00mm 0.01mm 100 GM-14 8.02-10.00mm 0.02mm 100 GM-03 3.01-4.00mm 0.01mm 100 GM-15 1.02-3.00mm 0.02mm 100 GM-04 4.01-5.00mm 0.01mm 100 GM-16 3.02-5.00mm 0.02mm 100 GM-05 5.01-6.00mm 0.01mm 100 GM-17 5.02-7.00mm 0.02mm 100 GM-06 6.01-7.00mm 0.01mm 100 GM-18 7.02-9.00mm 0.02mm 100 GM-07 7.01-8.00mm 0.01mm 100 GM-19 9.02-11.00mm 0.02mm 100 GM-08 8.01-9.00mm 0.01mm 100 GM-20 10.01-11.00mm 0.01mm 100 GM-09 9.01-10.00mm 0.01mm 100 GM-21 11.01-12.00mm 0.01mm 100 GM-10 0.30-2.00mm 0.02mm 86  GM-11 2.02-4.00mm 0.02mm 100