Down the Hole (DTH) Bits and Hammers

FMS is an authorised Atlas Copco distributor of the Prisma DTH range of products.

We offer a large range of rotary blasthole drills to the industry. They come in multiple configurations which helps us find the right solution for the job. Our blasthole products can meet your demands from 4” up to 16” hole diameter, and many models can be configured either for rotary or DTH drilling.

Flat front

Applications:
Hard and abrasive
formations, all round.

Typical formations:
Granite, hard limestone,
basalt.
SpeedBit

Applications:
Medium hard to
hard and abrasive
formations. For higher
productivity.

Design feature:
Ballistic buttons in
front.

Typical formations:
Granite, hard limestone,
basalt.
Convex front,
ballistic


Applications:
Soft to medium hard
rock. Non abrasive
formations. High
penetration rate.

Typical formations:
Lime-
stone, hard limestone,shale.
Concave front

Applications:
Medium hard to hard
formations. Less
abrasive, fractured
formations. Excellent
control over hole
deviation.

Design feature:
HD - larger gauge
buttons. DGR - double
(overlapping) gauge
row. Only from 8".

Typical formations:
Granite, hard limestone,
basalt.
Rocket bit

Applications:
Soft to medium hard
formations. For exceptional
productivity.
Fractured rock.

Design feature:
Spherical buttons for
hard and abrasive
formations.
Ballistic buttons for
soft formations.

Typical formations:
Limestone, hard limestone.

Should you wish for more information please contact us