Tapered Spindle Adapter - Left 1/2"/ 12.5mm

1/2" Left Spindle
The adapter slides onto the existing bench grinder shaft and is secured by a grub screw.
1/2" or 12.5mm bored Spindle Internal bore - 12.5mm 
 Total length - 78mm Length of taper - 55mm Diameter of body - 19mm Taper - 5mm - 18m