Mahr Groove Bottom Probe for measuring the bottom of grooves, recesses and small holes to depths of 6.35 mm/.25".
For use with Mahr/Federal Pocket Surf Portable Surface Roughness Gage
Also used for short lands and shoulders. With 90° conical diamond stylus, 10 μm/ .0004“ radius.
| 
 For Use With  | 
 Pocket Surf Portable Surface Roughness Gage  | 
| 
 Minimum Measurement (mm)  | 
 0.00  | 
| 
 Minimum Measurement (Decimal Inch)  | 
 0.0000  | 
| 
 Maximum Measurement (mm)  | 
 6.35  | 
| 
 Maximum Measurement (Decimal Inch)  | 
 0.2500  | 
| 
 Size (micro m)  | 
 10.00 (Radius)  | 
| 
 Size (Decimal Inch)  | 
 0.0004 (Radius)  | 
| 
 Roughness Parameter Type  | 
 Ra; Rmax; Ry; Rz  | 
| 
 
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