A this is an inspection grade granite surface.
Granite surface plate grade b.
Use grade aa laboratory plates for precision operations in constant temperature gaging rooms and metrology departments.
Standridge calibration certificate is included with every surface plate guaranteeing overall flatness and repeat gage measurements.
12 long x 12 wide x 4 thick granite inspection surface plate b toolroom grade 0 0002 unilateral tolerance includes nist traceability certificate msc 86433026 starrett 80607.
9x12x3 b0 precision granite b grade tool room surface plate 9 x 12 x 3 the 9x12x3 b0 precision granite b grade tool room 9 x 12 x 3 surface plate is on sale at gaging.
Hhip 4401 1812 black granite surface plate grade a ledge 0 18 length x 12 width x 3 height 000050 accuracy 80 lb.
B this is a toolroom grade granite surface.
For standard sized surface plates we guarantee flatness tolerances that exceed the requirements of this specification.
Solid granite surface plate and angle plates are used for precision layout inspection and tooling setup.
Weight 4 7 out of 5 stars 119 114 95.
Surface plates come in grades of a aa b and ht200 for different applications.
Aa this is a laboratory grade granite surface.
Grades of granite to consider when looking at a granite surface plate for sale.
Use grade aa laboratory plates for precision operations in constant temperature gaging rooms and metrology departments.
Tool room grade b laboratory grade aa x 4.
For shop work and production checking.
Or equivalent national or international organization complies with ansi ncsl z540 1and iso 10012.
In addition to flatness asme b89 3 7 2013 federal specification ggg p 463c address topics including.
A calibration certificate is included with every surface plate guaranteeing overall surface flatness and repeat gage measurements and is traceable to n i s t.
The granite used in a granite surface plate is graded by quality with these four levels of quality.
The granite surface plates that we offer are manufactured to meet or exceed the tolerances specified by federal specification ggg p 463c.
Surface plates come in grades of a aa b and ht200 for different applications.