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Gage Block Accessories
Rectangular Style |
Square Style |
Heavy-Duty Style |
Straight Jaws Half-Round Jaws Base Block Center Point Scriber Clamps |
Straight Jaws Half-Round Jaws Base Block Center Point Scriber Tie Rods and Screws Internal Measuring Machine Jaws |
Straight Jaws Half-Round Jaws Base Block Center Point Scriber Side Clamps End Clamps Measuring Indicators |
ACCESSORY TOLERANCES
INCH ACCESSORIES |
B89.1.9 Size Tolerance |
B89.1.9 Variation in Length Tolerance |
B89.1.9 Flatness Tolerance |
Straight Jaws (Outside Extension Jaws) |
±24µin. |
12µin. |
12µin. |
Half-Round Jaws (Inside Extension Jaws) |
±32µin. |
12µin. |
12µin. |
Base Blocks (Foot Blocks) |
±24µin. |
12µin. |
12µin. (Top) 40µin. (Bot) |
Scriber Points* |
±.0003 in. |
N/A |
12µin. |
Center Points* |
±.0003 in. |
N/A |
12µin. |
*Tolerances for center points and scribers are not specified in B89.1.9. Tolerances shown are Webber manufacturing tolerances. Webber Gage Does not calibrate scribers and center points.
METRIC ACCESSORIES |
B89.1.9 Size Tolerance |
B89.1.9 Variation in Length Tolerance |
B89.1.9 Flatness Tolerance |
Straight Jaws (Outside Extension Jaws) |
±0.6µm |
0.3µm |
0.3µm |
Half-Round Jaws (Inside Extension Jaws) |
±0.8µm |
0.3µm |
0.3µm |
Base Blocks (Foot Blocks) |
±0.6µm |
0.3µm |
0.3µm (Top) 1.0µm. (Bot) |
Scriber Points* |
±7.5µm |
N/A |
0.3µm |
Center Points* |
±.7.5µm |
N/A |
0.3µm |
NOTE: Accessories such as clamps, tie rods, and screws do not have any tolerances as would apply to gage blocks.
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GB70