GAR  G-4 Kit

Contains four individual roughness scales that include replicated surface finish specimens of machined (S-22), grit-blasted (G-6), shot-blasted (SH-6) and electrical discharge machined (EDM) (E-9) surfaces.

The G-4 GAR PAK Kit is supplied in an attractive pocket-sized vinyl case. Individual scales are available and can be purchased separately.

This MICROFINISH COMPARATOR Surface Roughness Set is a patented item and is a product of the engineering skill and precision workmanship of GAR Electroforming Division.

The G-4 GAR PAK Kit Contains 

S-22 Scale    Twenty two specimens of conventionally machined surfaces - lapped, ground, blanchard ground, shape-turned, milled and profiled - ranging from 2 to 500 microinches.

SH-6 Scale    Six shot-blast specimens ranging from 32 to 1000 microinches.

E-9 Scale      Nine EDM specimens ranging from 16 to 250 microinches.

G-6 Scale      Six grit-blast specimens ranging from 32 to 1000 microinches.