Starrett 657AA Magnetic Base Indicator Holder with Attachments 657A/B/C/D/E/F Complete Set USA Made Inspection Mirror 2-1/4" - 8The chuck is

2-1/4" - 8The chuck is excellent quality

The unit has old packing grease on the machined surfaces that is easily cleaned off

Knife Length: 214 mm

01mm ASIMETO  Absolute Digital Caliper

2 magnetic bars encased in a metal case 1-1/4" x 1-1/4" x 4-1/2"

Starrett 657AA Magnetic Base Indicator Holder with Attachments 657A/B/C/D/E/F Complete Set USA Made Inspection Mirror 2-1/4" - 8The chuck isThe Starrett 657AA Magnetic Base Indicator Holder is for use with all Starrett Test, Back Plunger, AGD, Dial and Miniature Dial Indicators. Also accommodates similar indicators of other manufacturers. Includes magnetic base with all attachments: upright base post, two snugs, rod, and indicator attachment. FEATURES: Powerful, permanent magnetic base holds firmly to steel or iron surfaces horizontally, vertically, upside down. Push button turns magnetic