Machines 20T-25T

MODEL A8 RC8
Drilling conditions Combo rock / earth Combo heavy duty rock / earth
Hub 4″ Square 4″ Square
Optional Hub 3″ Hex 3″ Hex
Overall length 60″ 60″
Pipe 3″ – 6.5″ 3″ – 6.5″
Flights (lead) 5 / 8″ 5 / 8″
Flights (carry) 5 / 8″ 5 / 8″
Teeth TTD TTL
Pilot PH – 3 PH – 3
Max size 78″ 78″
Ideal drives 13DDS – 30DDS 13DD – 30DD
Optimum drilling speeds
Earth 55-65 55-65
Clay 45-55 45-55
Shale (fracturable rock) 25 – 45 25 – 45
Heavy rock 10 – 25 10 – 25
Earth Double flight configuration Upgraded flights from 3/8” to 5/8” for greater durability & performance with larger machines.

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