Machined with exacting tolerances; hook is .005" closer to rim to
give a positive, non-slip grip on the case head. The very precise
hook point is hardened to Rc 58-60, will not lose its edge, even
after years of use.
SPECS: A-2 tool steel, in-the-white. Includes replacement
spring. Fits 10/22 and 10/22 magnum.
Catalog page 152