20pcs. Rare Vintage Brown & Sharpe Rubber Flex Collet Set Screw Machine B&S 3/4

  

This set looks to be in good shape yet for it's age. Each collet has a different number on it, some say 200, or. 450 or 550 or 700 etc.

1.068 Long and the outside diameter. Ranges from about 1.590 to 1.636. Various sizes from 9/32 up to 3/4.

Old vintage rare complete screw machine tooling.