DH123 Drills are a series of 4 1/2" (114.3mm) bore drifter drills for general mining, tunneling, and construction work
These drills can also be mounted on light Screw Feed Aluminum Guide Shells for long-hole drilling
The main design construction features many options:
- Backheads for remote control automated drilling
- Backheads with internal controls, operate at the drill
- Threaded exhaust ports for noise control equipment
- Chuck end parts for 1 1/2" round tangential shanks
- Chuck end parts for 1 1/4" lyner style lugs
- Rotation directional controls