Gar M-104 | 4 Microinch Roughness Single Specimen Comparator Hone-Lap Grind Method

Individual rectangular block (measuring 1 3/8" x 1 7/8"). It is made of corrosion resistant electroformed nickel that is a duplicate of actual conventionally machined surfaces. The M104 has a roughness average of 4 and the machining method is hone lap grind.

Features:

• Roughness scale for inspection
• Single block specimen
• 4 Microinch roughness
• Machining method: Hone lap grind
• Genuine leather sleeve