R 408.12744
R 408.12744 Boring and mortising machines.
Cite as Mich. Admin. Code R 408.12744
Rule 2744. (1) A safety bit chuck without projecting set screws shall be used on a
boring or mortising machine.
(2) Boring bits should have a guard enclosing all portions of the bit and chuck
above the material being worked.
(3) The top of the cutting chain and driving mechanism on a chain mortiser shall
be enclosed.
(4) If there is a counterweight, it shall be guarded as prescribed in R 408.12728(2).
(5) Universal joints and spindles of boring machines shall be guarded to prevent
accidental contact by the operator.