Review on BONATE Precision Blocks 0.0002 Hardened by Tim Whitney

This set of blocks is exceptional for industrial and scientific calibration use. Through trial and error, I found that the precision is spot on at 0.0002. The blocks are also hardened, so they are more durable than others I've used. The only con is the price, which may deter hesitant buyers. However, in this case, the quality justifies the cost. Overall, I highly recommend these blocks for anyone in need of precise calibration.