WEN10481 81-Piece Steel Gauge Block Set with Case

Given the low price of these gauge blocks, I was hesitant to buy them; but they happened to be on sale and so I decided to try them. After all, Amazon has a good return policy on Prime items. I have a (out of control) hobby machine shop. I had seen a "similar" Mitutoyo set at a commercial machine shop before, and those had cost them $4800.I got the Wen set within a couple days, and I left it overnight to acclimatize. The next day I randomly picked 10 of the blocks, cleaned them, and checked them using a digital micrometer and a vernier micrometer. (It was a good excuse to compare the readings on my digital mic to the old-school type.)Of the 10 I tested, 7 measured spot-on, and 3 measured less than a 1/2 tenth (0.00005) out. It's also worth mentioning that the ones measuring oversize were also showing oversize on the inspection sheet that came with the set.The finish on the blocks is excellent and they easily wring together to make a stack.For my purposes, these blocks are definitely more accurate than what I need, given the measuring tools I have. Both of my micrometers can only measure to within 1/2 tenth, and beyond that it's pretty subjective.I'm super happy with my purchase.

I have come to rely on WEN for quality products at a reasonable price and this gage block set is no exception. I just received these and are very impressed with their quality. The case is well made and keeps each block separated. It comes with a certificate of inspection that lists the actual measured value of each and every block to the nearest microinch. The furthest from nominal is 0.000027 inch, which is close enough for anything I will ever do! Most are much closer than that to nominal. I have tried wringing them together and have had no problem except for the larger blocks. They still wring, but it takes a bit of effort.Plan on spending an hour or so unwrapping each individual block and cleaning the oil of the blocks. This is a small price to pay for what you are getting.I can now accurately calibrate the DRO on my mill. These are a Great value for the money and I would whole heartily recommend this set for the home shop or small job shop

Uso este juego de bloques patron en piso, principalmente para posicionar piezas y usar la mesa de senos, y la verdad me ha funcionado muy bien. Otras opciones estaban en 20 mil las economicas, y este la verdad cumple la funcion.

Parami están bastante bien buena calidad aunque sean económicos

American made at a price that competes with cheap imports. Excellent quality with standards certificate of each block.