Starrett 657T Flex-O-Post Indicator Holder Magnetic Base with Flex-O-Post Assembly Buck Knives On the opposite end of

On the opposite end of the crescent-turn side

Adjusts from 1" to 6" (25 mm to 152 mm) diameter circles

&  5/8" plug cutters - 3/8" shank

ALLEN - 6 PT

Starrett 657T Flex-O-Post Indicator Holder Magnetic Base with Flex-O-Post Assembly Buck Knives On the opposite end ofMade in USA Starrett Model 657T Flex O Post Indicator Holder Box not included Product Description Specs The Starrett 657T Flex O Post Indicator Holder Magnetic Base with Flex O Post Assembly. The Starrett 657T Flex O Post Indicator Holder with Magnetic Base Complete Assembly is designed for use with all Starrett Test, Back Plunger, AGD, Dial, and Miniature Dial Indicators. Also accommodates similar indicators of other manufacturers. The flexible post