Starrett C606R-12 6R 12" Spring Tempered Steel Rule with Inch Graduations 10ths and 50ths Cat 50 Collet Chuck End Mill Holder eliminating the need for collet

eliminating the need for collet changes on Bridgeports and similar machines

Allows machines to work even in deep pockets

These are the 3G's of the perfect carbide cutter

The chuck is shiny and new but we could not get the lighting right

This provides one full rotation of the hand both to the right and left of zero

Starrett C606R-12 6R 12" Spring Tempered Steel Rule with Inch Graduations 10ths and 50ths Cat 50 Collet Chuck End Mill Holder eliminating the need for colletC606R 12 SPRING TEMPERED STEEL RULE WITH INCH GRADUATIONS The Starrett 12" Spring Tempered Steel Rules with Inch Graduation features a satin chrome finish. Graduations at aircraft quick reading 50ths (. 02) on both edges on one side, quick reading 10ths (. 10) on both edges, on opposite side. 12", 6R Grad side. Thickness (in): 3 64" Width (in): 1" Construction: Spring Tempered Steel Finish: Satin Chrome Graduations: Both Sides , Aircraft Quick Reading