3M 65489, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc, DUH5120TRI-10T, 5 IN x UH, 120, 7100202877, 10 per pack 
Insize 6225-100E, UNIVERSAL DIAL INDICATOR STANDS (NON-MAGNETIC),
$261.68
Applicable holding stem 3/8″ DIA
Hardend base
Suitable for granite surface plates or ast iron surface plates
For electronic/dial indicators and dial test indicators
Related products
Adhesives & Sealants
3M 08217, Universal Adhesive Clear – 3, 200 mL Cartridge, 7100006285, 6 per case
$67.63
Adhesives & Sealants
3M 08214, Unversal Adhesive Black -10, 200 mL Cartridge, 7000148204, 6 per case
$59.01