Impact wrench

Method and apparatus for driving drain board

Mine roof support for a mobile drilling machine

Mobile drilling and bolting machine

Modular well drilling apparatus and methods

Motor-driven hand-held tool with functional step display

One man operated, twin wheel mounted powered earth drill

Particulate material intercepting arrangement for a hand-held to

Pile driving system

Pile hammer cushion apparatus

Pneumatic rotary tool

Post driver

Power tool and beam location device

Power tools

Rock breaking device

Roof bolting device

Roof drilling and bolting apparatus

Rotatable mine drilling apparatus

Shallow-hole kerf boring machine with auger on side-arm elevatin

Tool with motion and orientation indicators