Workholding Chuck features pull down insert.

Press Release Summary:

Model 620CB Air Chuck features precision MT-5 adapter and diesel fuel injection nozzles for OD profile grinding on Tschudin Anglehead grinder. Device has sub-jaws and carbide ball nose shafts mounted on No. 15 taper sleeves. Carbide shafts run concentric to 1/10,000 TIR. Pull down inserts repeat to 1/10,000 TIR and grip nozzle/center base and pull nozzle seat onto nose shaft.

Original Press Release:

Workholding Chuck with Pull Down Insert

Northfield Precision Instrument Corporation is a leader in the design and manufacture of precision workholding air and diaphragm chucks. Northfield manufactures precision air chucks with a guarantee of accuracy within millionths. We have come to be the precision workholding source for air & diaphragm chucks with workholding leadership in accuracy, reliability, repeatability, concentricity, productivity and customer service. Northfield introduces an enhanced air chuck Model 620CB with a pull-down insert.

We have now added the Model 620 CB Air Chuck which features a precision MT-5 adapter. Parts are diesel fuel injection nozzles for O.D. profile grind on Tschudin Anglehead grinder. Chuck has sub-jaws, pull down inserts and carbide ball nose shafts mounted on No. 15 taper sleeves. Carbide shafts run concentric to 1/10,000 T.I.R. Inserts repeat to 1/10,000 T.I.R. Inserts grip nozzle, center the base and pull the nozzle seat onto the carbide ball nose shaft.

The world's most accurate air and diaphragm chucks for any lathe, boring machine or grinder or VMC. Models include through-hole, high-speed and quick-change chucks. Available in SAE or metric, in chuck sizes from 3" (76mm) to 18" (457mm). Accuracies of 0.001" to 0.00001" (0.254m) guaranteed. Manufacturing applications for air & diaphragm chucks include, but are not limited to, turning, grinding, boring, milling, measuring, inspection, material handling, robotics, CNC, EDM. All machines - rotating, stationary, vertical, horizontal. Universal workholding - internal, external, thin-wall, rigid.

One competitive price for complete workholding system including chuck, top jaws, custom made air tube assembly, rotary joint, hoses, operating valve and accessory kit. No hidden extras.

Custom workholding chucks and jaws are available and FREE engineering and technical assistance is offered. Contact Northfield Precision Instrument Corp., 4400 Austin Blvd., P. O. Box 550, Island Park, NY 11558-0550. Call Toll Free 1-800-810-2482 - Fax(516) 431-1928; or visit our website at

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