Mahr Federal Calsurf Roughness Standard PMD-90101

Mitutoyo .24005” No.177-207 MASTER PLAIN BORE SETTING RING GAGE

Mahr Federal Precision Devices Roughness Standard Model PMD-90101

Starrett 683 Internal Chamfer Gauge W/ Case 0 to 1/2"

Fowler 53505 / 53-762-102-0 Durometer ASTM D2240

Mahr Pocket Surf IV Mobile Roughness Measuring Instrument Model 2254010

Glastonbury Gage 1.0630 XX RING BORE GAGE

Vermont Gage Cylindrical Plug Gage GO .8745 No GO .8765