Gar Electroforming

• Shape(4 1/2"x 3 1/4")

DESCRIPTION FACTS & FEATURES TERMINOLOGY REVIEWS Cast Microfinish Comparator: Nine replicated cast surface finish specimens ranging from 20 to 900 microinches. The C-9 Cast MICROFINISH COMPARATOR Surface Roughness Scale is made by a dual electroforming process wherein nickel is electrodeposited to provide an exact reproduction in intricate detail.The same electroforming process used to produce the Surface Roughness Scale is available from GAR Electroforming to serve your product needs. The C-9 Cast MICROFINISH COMPARATOR Surface Roughness Scale provides industry with established flat surface roughness specimens for visual and tactual comparison. It is used in specifying and controlling surface roughness when a product having the appearance of typically cast surfaces is required. The C-9 Cast MICROFINISH COMPARATOR Surface Roughness Scale provides an economical tool which permits roughness to be specified on the same basis as linear measurements. The surfaces presented are the result of years of research and engineering. Details covering this subject are now published in The American National Standards Institute (ANSI) specification titled: "Surface Texture, Surface Roughness, Waviness and Lay." ANSIASME B46.1 UNIFORMITY AND ACCURACY The original masters and the electroformed replica production masters have been checked at evenly distributed intervals. Sufficient measurements were taken to determine a representative average. The rating listed is the average of these readings.This MICROFINISH COMPARATOR Surface Roughness Scale is a patented item and is a product of the engineering skill and precision workmanship of GAR Electroforming Division.

• Shape(7/8" x 5")

The E-9 MICROFINISH COMPARATOR Surface Roughness Scale provides an economical tool which permits roughness to be specified on the same basis as linear measurements. The surfaces presented are the result of years of research and engineering. Details covering this subject are now published in The American National Standards Institute (ANSI) specification titled: "Surface Texture, Surface Roughness, Waviness and Lay". ANSIASME B46.1 The E-9 MICROFINISH COMPARATOR Surface Roughness Scale is made by a dual electroforming process wherein nickel is electrodeposited to provide an exact reproduction in intricate detail. The same electroforming process used to produce the Surface Roughness Scale is available from GAR Electroforming to serve your product needs. The surfaces used in this scale are reproductions of accurately electrical discharge machined surfaces on oil-hardening tool steel measured in microinches (millionths of an inch- 0.000001"). The numbers engraved alongside each surface are the average deviation from the mean surface expressed in microinches. The E-9 MICROFINISH COMPARATOR Surface Roughness Scale provides industry with established flat surface roughness specimens for visual and tactual comparison. It is used in specifying and controlling surface roughness when a product having the appearance of typically EDM surfaces on tool steel, is required.

• Shape(1" x 5")

The G-6 MICROFINISH COMPARATOR Surface Roughness Scale is made by a dual electroforming process wherein nickel is electrodeposited to provide an exact reproduction in intricate detail. The same electroforming process used to produce the Surface Roughness Scale is available from GAR Electroforming to serve your product needs. The surfaces used in this scale are reproductions of accurately grit-blasted surfaces measured in microinches (millionths of an inch 0.000001"). The numbers engraved alongside each surface are the average deviation from the mean surface expressed in microinches. The G-6 MICROFINISH COMPARATOR Surface Roughness Scale provides industry with established flat surface roughness specimens for visual and tactual comparison. It is used in specifying and controlling surface roughness when a product having the appearance of typically grit-blasted surfaces is required. The G-6 MICROFINISH COMPARATOR Surface Roughness Scale provides an economical tool which permits roughness to be specified on the same basis as linear measurements. The surfaces presented are the result of years of research and engineering. Details covering this subject are now published in The American National Standards Institute (ANSI) specification titled: "Surface Texture, Surface Roughness, Waviness and Lay". ANSIASME B46.1 Place the MICROFINISH COMPARATOR Surface Roughness Scale alongside your work piece. Slide the scale so that the rectangle with the surface roughness you want is adjacent to the piece you are examining. Compare by drawing the tip of the fingernail across each surface at right angles to the tool mark. The feel of the fingernail contact must be the same if the finishes are identical. This MICROFINISH COMPARATOR Surface Roughness Scale is a product of the engineering skill and precision workmanship of GAR Electroforming Division.

• Shape(1 3/8" x 6")

Twelve replicated machined surface finish specimens with examples of five different machining processes: lapped, ground, profiled, shape-turned and milled- ranging from 4 to 125 microinches. The G-60 MICROFINISH COMPARATOR Surface Roughness Scale is made by a dual electroforming process wherein nickel is electrodeposited to provide an exact reproduction in intricate detail. The same electroforming process used to produce the Surface Roughness Scale is available from GAR Electroforming to serve your product needs. The surfaces used in this scale are reproductions of accurately machined surfaces measured in microinches (millionths of an inch 0.000001"). The numbers engraved alongside each surface are the average deviation from the mean surface expressed in microinches. The G-60 MICROFINISH COMPARATOR Surface Roughness Scale provides the industry with established flat surface roughness specimens for visual and tactual comparison. It is used in specifying and controlling surface roughness when a product having the appearance of typically machined surfaces is required. The G-60 MICROFINISH COMPARATOR Surface Roughness Scale provides an economical tool which permit roughness to be specified on the same basis as linear measurements. The surfaces presented are the result of years of research and engineering. Details covering this subject are now published in the American National Standards Institute (ANSI) specification titled: "Surface Texture, Surface Roughness , Waviness and Lay" ANSIASME B46.1 Place the MICROFINISH COMPARATOR Surface Roughness Scale alongside your work piece. Slide the scale so that the rectangle with the surface roughness you want is adjacent to the piece you are examining. Compare by drawing the tip of the fingernail across each surface at right angles to the tool mark. The feel of the fingernail contact must be the same if the finishes are identical.

• NumberM 102
• Average2

• NumberM 190
• Average90