Maximum Individual Spacing Error: 25 seconds Vernier Reading:10 seconds Base to Chuck Squareness(90'): 0.0008"

*For milling, drilling, jig boring, and many common shop applications

*24 position hardened and ground index plate(15' increments) with satin chrome dial,360ºgraduated ring and adjustable 10 second vernier *Each unit is equipped with six(6) masking plates(2,3,4,6,8, 12and 24 divisions)

Maximum Individual Spacing Error: 25 secondsVernier Reading:10 secondsBase to Chuck Squareness(90'): 0.0008"Base Parallelism:0.0004"

Mounting Flange Concentricity:0.0008"

Chuck Concentricity:0.0005"

Ordering Information
Model	Size	Center	Chuck Cent.	Wt.
	(In.)	Ht.(In.)	Hole (In.)	(Lbs.)
ISR-6	6	5.100	1.730	105
ISR-8	8	6.100	2.480	185