Wheel Balancing Arbor, 3 in 12 Type, 612-618-818 Grinders

Surface Grinder Balancing Arbor 3 in 12 Taper Similar to Sopko Toolroom Balancing Arbor

Made From 4140 Pre Hard approximately 30 Rockwell C

Approximately 6 7/8″ Long

For Toolroom Grinder Hubs with 3″ in 12″ Taper (Most 612 618 818 Grinders)

Large end of taper appox. 1″  Small end approx. .675

Ground between centers on Surface Grinder for excellent concentricity

Threaded 5/8-18

Nut included

Best used on Knife edge balancing stand or roller balancing stand

Can be used on good bur free, very clean, and leveled setup blocks

Made in USA

This is a finely finished precision tool