PREVIOUS
GAGE BLOCK HEADER PAGE
NEXT
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.
PREVIOUS
GAGE BLOCK HEADER PAGE
NEXT
GB70
©2008, Webber Gage Division, The L. S. Starrett Co, Cleveland, Ohio , 44145
INDEX