Gauge blacks, Standard inch system. Parallelism: 0.000005", Maximum tolerance: for size within 1" +0.000008/-0.000004; for size 2" +0.000016/-0.000008; for size 3" +0.000020/-0.000010; for size 4" +0.000024/-0.000012.
This is a Bison 3 Jaw chuck, 6.25" actual diameter. Through hole is 1.65", so you can get a 1 5/8" rod through the headstock. This is a quality chuck rated at 4500 RPM, which is double the speed rating of most cheaper chucks.
We are a China dental supplier carrying a full line of high quality products, all items are get from the factory directly. Their quality is insured by our return policy and our full-coverage warranty! If they have any quality problem we can offer you a full refund.
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