We kept looking until we finally found these premium quality,
smooth cutting stones to give you the ultimate combination of
hardness, cutting speed and finish for shaping the ejection port
roll-over notch on those tough, 1911 Auto slides. Start with the
B51 stone for either the short or long style notch, then finish up
with the B42 to bring the long style notch to full depth. Cobalt
impregnated aluminum oxide stones cut fast but will not gouge or
tear the metal. You get a smooth, ready-to-finish surface that can
be polished or bead-blasted. Stones can be reground and
reshaped so they last through job after job. Hardened steel
shanks are nickel-plated for long life and stay concentric even after
repeated use.
SPECS: Cobalt impregnated aluminum oxide, 120 grit. Includes
(2) B51, (2) B42 stones and instructions. 1/8" (3mm) dia.
shank.
Catalog page 139