Magna-Matic MAG-1000GC Blade Balancer Made in the USA then use as usual

then use as usual

But practicing on someone's prized shears worth several hundred dollars could be a problem

this stone is used after the Coarse/Extra Coarse

The Norton IM313 System includes three 11-1/2" x 2-1/2" Norton Stones

Magna-Matic MAG-1000GC Blade Balancer Made in the USA then use as usualMagna Matic Blade Balancer Gold Carbide Edition The most advanced model Blade Balancer features 8 bearings for improved sensitivity and a carbide shaft to prevent deflection caused by heavy blades. Mounts on the wall allowing the blade to hang in a horizontal balance position. Strong magnets hold the blade in place. Cone size fits blade hole widths 5 16" to 1 1 2" diameter. Made of the finest precision steel for a long life. Special sealed bearings