Mich. Admin. Code R. 408.12648 - Lathes
Rule 2648.
(1)
A lathe face plate or chuck with projections on the periphery shall not be used
unless guarded.
(2) A chuck key for
a lathe chuck shall be 1 of the following:
(a) Counterweighted to return it to storage
position.
(b) Interlocked to
prevent the chuck from being power driven when the key is in the
chuck.
(c) Spring loaded to eject
it from the chuck.
Notes
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