Item No. 635-1016 

8 pair set All machined , and hardened ground

Made of high quality tool steel

Accuracy : +/- .0002" in parallelism 

2 holes in each one 

Sizes:

6" in length

1/2 x 7/8--------5/16 hole

1/2 x 1----------5/16 hole

1/2 x 1-1/8-----3/8 hole

1/2 x 1-1/4-----3/8 hole

1/2 x 1-3/8-----7/16 hole

1/2 x 1-1/2-----7/17 hole

1/2 x 1-5/8-----1/2 hole

1/2 x 1-3/4-----1/2 hole

Fitted in a plastic box