Series 679 - 36 pcs Round Space Block Set

36 pcs Round Space Block Set
Series 679
 
FEATURES

• For quickly setting stops and set ups in lathes, milling machines, drill presses, etc.  Also excellent for setting sine bars
• Each block marked for size. Overall diameter: .750''
• 1⁄4''-28 threaded hole through center of block
• Working surfaces hardened to HRC 58-60
• Working surfaces precision ground and lapped to ± .000050''
• 4 connecting screws supplied to form desired length