Machines include, but are not limited to, single spindle and multi-spindle drill presses and tappers, nameplate machine; cover machine; horizontal and vertical milling machines; spot welder; annealing oven; parts washers; multi-axis, multi-turret automatic and hand turret lathes, deburring grinder; automatic bar machines; and CNC turning centers. Setup and operate conventional machines; and operate only NC and CNC and automatic chucking machines to perform a variety of turning, drilling, tapping, boring, reaming, threading, forming, facing, milling, slotting, grooving, chamfering, serrating and deburring operations to produce a variety of explosion proof parts of various materials.