81 Piece Precision Gage Block Set
TTC 81 Piece Precision Gage Block Sets - Model: PGB-81   Sizes: .1001 thru 4  • Supplied with a certificate of accuracy.   Number of Pieces: 81  Grade B

81 Piece Precision Gage Block Set

Item #: 57-046-002
Brand: TTC
Model #: PGB-81
Grade: B
Size: .1001" thru 4"

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Applications

  • Primarily used as reference gages for setting and checking other gages.

Features

  • Highest degree of accuracy when used at a temperature of 68°F (20°C).
  • Each block serialized, regardless of the grade, for identification when block is re-calibrated and certified at a later date.
  • Alloy steel with Rockwell hardness of 65.
  • Sets are calibrated to meet or exceed federal specifications GGG-G-15C.
Grade "B"
  • Supplied with a certificate of accuracy only.

Includes

(9) Blocks: .1001" to .1009" (.0001" steps), (49) Blocks: .101" to .149 (.001" steps), (19) Blocks: .05" to .95" (.05" steps), (1) Each of blocks: 1", 2", 3", 4"
TTC 81 Piece Precision Gage Block Set
Product Specifications
Brand TTC
Model # PGB-81
Grade B
Size .1001" thru 4"
No. of Pieces in Set 81
Tool Material Steel
Accuracy Grade B
Application Primarily used as reference gages for setting and checking other gages.
Includes (9) Blocks: .1001" to .1009" (.0001" steps), (49) Blocks: .101" to .149 (.001" steps), (19) Blocks: .05" to .95" (.05" steps), (1) Each of blocks: 1", 2", 3", 4"
No. of Pieces 81
Type Inch Precision Gage Block Set
Prop. 65 Yes
Weight 8.8 lbs.
Country of Origin Import
Prop 65 Warning Many metalworking products do contain metals that are included in the latest Prop 65 warning. Exposure to the elements can be harmful. May cause cancer and reproductive harm.

Overall Rating:

Good case, but block markings are very faint

On May 07, 2018 CeeDee from ON wrote:

Bought this set for set-ups, to have a ‘working set’ in the shop. The major problem with these gage blocks is that the size etchings on some of the blocks are so faint that they are very difficult to see, even with magnification (you need to turn the block to just the correct angle in the light to see the very faint etching- this was bad enough that I considered returning them, but then I got really busy with work and then it was too late to return them). Most of the blocks are properly etched and easy to see, but the faint marks on some are a possible major source of error. Wringing the blocks is fairly reliable, but bigger stacks are tricky and not as reliable compared to name brand blocks. Got this set on sale for a reasonable price, and the quality is about commensurate with the price (about what you would expect). Don’t expect Webber Starrett Jo-Blocks at these prices. These 81 piece basic sets are blocks only, with no other parts for stacking/gaging. The wood case is of good quality, closes properly, with good latches, and the case protects the blocks adequately. It comes with a sheet of VCI anti-corrosion paper and deviation report certificate. Overall, these are OK for shop grade 3 blocks (Grade B in the old system) as long as you are not expecting Pratt Whitney blocks. In comparison to other import blocks, I think the Asimeto brand blocks are better quality, but cost more also. In terms of accuracy, I think these are in spec within the ability I have to measure them, but I don’t have access to a metrology lab to confirm their accuracy. Hopefully this description will help you decide if these are good enough for you.