Offset drilling machine

Offset driver accessory

Offset driver accessory

Offset driver accessory

Oil pressure type impulse torque generator for wrench

One man operated, twin wheel mounted powered earth drill

One piece combination chisel/hammer/crowbar devices

One-person battering ram

Opening device for drill rods for an extension rod drilling equi

Operating mode switching apparatus for a hammer drill

Operating system for hydraulic rock drill

Operation mode switching mechanism for a hammer drill

Optimized high power high energy ignition system

Optimizing method for regulating the operating state of a...

Orthopedic surgical device

Oscillating mass-based tool with dual stiffness spring

Oscillator for reciprocating tool or other device

Output shaft locking device

Overhead drill jig

Overload protection apparatus for hydraulic multi-function equip