Description of Starrett S829EZ Gauges Full Ball Pieces
Set of four small hole gauges for measuring holes, slots, grooves, and recesses in woodworking, metalworking, machining, layout, and pattern-making applications. Measuring range of 0.125 to 0.5"/3.2 to 12.7mm. Full-ball measuring surface is hardened and ground for two-point contact. Safety stop prevents gauge from adjustment beyond its range. Includes protective case for storage. Range: .125-.200", .200-.300", .300-.400", .400-.500". Hardened-ball measuring surface with two-point contact. Radius on each gage is less than the minimum diameter to be measured, which provides the two-oint contact necessary for maximum accuracy. Smooth, sensitive adjustment for better feel, giving more accurate measurements. The adjustment of the gage beyond their range is restricted by a safety stop that prevents breakage.