Product info

Single-use system for down the hole hammer

Sometimes overburden is thick and full of boulders. Robit® Single-Use Casing System for DTH Hammer enables easy, fast, and reliable drilling process in all conditions. Robit® Single-Use Casing Systems are available for all the common Down The Hole hammers and are designed for all the applications where the casing is left in the ground.

Casing OD (mm)139,7
Casing OD (in.)5 ½
Casing Max Wall (mm)5,6
Casing Max Wall (in.)0.220
Ring bit ID (mm)116
Ring bit ID (in.)4.567
Ring bit OD (mm)156
Ring bit OD (in.)6.142
Pilot bit OD (mm)
Pilot bit OD (in.)
Hammer4”
Product number03-011-139-3629