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3-jaw wedge type non through-hole power chuck
(adapter excluded)
Easy to mount.
Stopper bolt can prevent master jaws departing from the body.
Replaceable for Japanese brands.
Standard product 6~10" made of high strength alloy steel SCM440 from Japan
Above 21 inches are made of FCD600.
Sliding surfaces, master jaws, and interior parts are hardening and grinding.