RR890 pilot bit

New RR890 raise boring pilot bit, thoroughly engineered for predictability and for giving your raise boring operations a competitive edge. With advanced and reliable design, it significantly extends service life, allowing for more drilling meters and reduced downtime.

Features

Optimized design

The advanced and cutting-edge technology behind the RR890 pilot bit withstands higher loads and temperatures, enables more even rock breaking and reduces wear.
Longer service life

Equipped with Charger® dual seal bearing, PowerCarbide® SH75 and full leg protection, the RR890 offers far longer service life of both the bearing and the inserts, and thereby increases your overall drilling distance.
Reduced downtime

Say goodbye to frequent tripping, unexpected interruptions for bit replacements, and potential safety hazards for operators associated with unnecessary manual handling.

Product specifications

Bit type: PX
Diameter: 229 - 406 mm / 9 - 16"
Bit weight: 45 - 212 kg / 100 - 467 lbs
Max bit load: 29 665 - 52 160 kg / 65 400 - 115 000 lbs
API thread: 4 1/2 - 7 5/8"

*For more specific technical details, please contact a Rock Tools Sales Representative

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