www.safetyandhealthmagazine.com/articles/grinder-shields-2

Grinder shields

December 1, 2011
This line of electrically interlocked heavy-duty grinder and tool grinder shields goes beyond OSHA and ANSI safety requirements. The shields are ideal for single- and double-wheel grinders. When a shield is swung out of position, the positive contacts on the microswitch open, sending a stop signal to the machine control.

Rockford Systems Inc.