Machinist's Thin Parallel Bar Set - 10 Pair 1/8" X 6"

These bars are of very good quality. The plastic case is garbage, but I'm still using it, so could be worse.

Pretty good for the price! They are accurate enough for any home machinist!

these are not starrett or any other fancy make but they are incredible value at 10% of starrett prices and fine for general machine work. They measured up ok and were mostly within the spec claimed, a couple needed a very light cleanup touch with a machinist hand stone to get them dead on. If you have a granite plate and can measure them properly even if they are a little off its really easy to get them dead on or even better than 0.0002, the ones that were a little off were oversize. out the box they are plenty good enough for machining jobs in the home shop they are good enough for a general machine/job shop too as long as your not taking on crazy aerospace stuff. what i love about these is they are cheap work OK for 99% of jobs and the nice expensive super precision set can stay in the draw for special jobs that need the extra precision.

They work

5 star product that exceeds my needs. I use to position material in a vise for drilling operations, no milling. Upon arrival I took time unwrapping, removing oil and then squared up pairs on surface plate. I'm talking visual inspection so I understand many will laugh off this review. Pairs appear consistently sized and labeling is easy to read. Parallels are nicely finished and do exactly what I need them to do. Great value, sets of these can be very expensive. Appropriate for a hobbyist like myself.

I measured the set I received, and honestly quite pleased about the result. On the business sides, parallelism is within a few tenth, and the dimensional (height) variation of each pair is within a few tenth as well. Plenty close for my intended use, which is general setup on mill, lathe, shaper, drill press etc.. If one needs to use them on a grinder, he already has a grinder and can get them dead nuts himself. They have been heated treated, but does not seem to be all that hard. I did notice a few pairs are warped by a few thousandth on the non-critical surface, aka the sides which two holes were drilled. But they are not intended to be used on this direction anyway. You could straighten them up if you want. The plastic box is cheaply made though, not nearly as sturdy as the good set we have at work. For the value of the the set, it is amazing. I could make my own set, but material itself would cost me more than $34, not even mention the time I spend on machining, heat treating, grinding.

I like the various sizes and the storage case Keeps them from getting damaged.

Some of the parallels have incredibly sharp edges on them. I have sliced nice, deep gashes through my fingers and towels on a few occasions while wiping them down. You need to lightly deburr the edges on them. I have only opened a few of the sizes, but some of them come with a slight dish or a warp to the long edges. I may pair them up and put a light finishing surface grind on them at my work to true the troublesome ones up if I notice they are really throwing my work off. However, for a home hobby shop, they do great.