Used with standard outside micrometers with spindle .256″DIA to measure pitch diameter of screw threads.
Diameter accuracy: ?20_in. Cylindricity: 39_in.
Cylindricity: 1um. Hardness: HRC60.
Supplied with manufacturer inspection certificate.
Supplied with manufacturer inspection certificate.

Dynabrade 56719 .4 hp Right Angle Die Grinder, Central Vacuum, 20,000 RPM, 1/4" Collet
Dynabrade 57290 Housing for Model 56829; 12,000 RPM
Dynabrade 91629 1-1/2" W x 24" L 320 Grit A/O DynaCut Belt, 10/pack
Dynabrade 82427 5" Dia. x 60 Grit A/O Hook Non-Vacuum Film-Backed DynaCut Disc, 100/Box
Dynabrade 11330 Contact Arm Ass'y, 7/8" Dia. x 1/8" W, Brass Wheel, with 1/4" W Platen
Dynabrade 79164 1/4" W x 30" L 60 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 96623 Raptor Vac Disposable Dust Collection Bags, 5/pack
Dynabrade 11360 Contact Arm Ass'y, 5/8" Dia. x 3/8" W, Rubber Wheel, No Platen/Offset Design
Dynabrade 01437 Plug
Dynabrade 56354 2-2/3" x 6-7/8" Non-Vacuum Dynabug II Disc Pad, Vinyl-Face
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade 80020 Dynamount Bench Mount (for Dynafile 14000)
Dynabrade 96572 1" Swivel Adapter
Dynabrade 49455 Mini Angle Head Drill, .4 HP, Rear Exhaust, 950 RPM, 1/4"-28 Female Thread
Dynabrade 76006 - 5" (127 mm) Dia. Vacuum Disc Pad, Vinyl-Face, Display Card
3M 33439, Cubitron II File Belt, 33439, 60+, 10 mm x 330 mm (3/8 in x 13 in), 7100033194, 10 belts per carton, 5 cartons per case 