Combo Depth & Angle Gauge, Depth Gauge Type Steel Rule Depth Gage, Range 0 in to 6 in/ BASE LENGTH: 2.000 INCHES MINIMUM AND 3.000 INCHES MAXIMUM MEASUREMENT SYSTEM: ENGLISH GAGING RANGE: 0.000 TO 6.000 INCHES EDGE SMALLEST GRADUATION UNIT: 1/64 INCH AND 1/32 INCH SPECIAL FEATURES: STEEL RULE; PLAIN HEAD