DEEP DRILLING - BTA SYSTEM SGP Boring Head Sub-Guide Pads b OAL H Designation OAL b H SGP-01 10.00 6.0 3.0 SGP-02 10.00 8.0 4.5 SGP-03 10.00 10.0 5.0 SGP-04 20.00 14.0 7.0 • Select an outer cartridge and pad for the required enlarged diameter. GPP Boring Head Guide b Pad Protectors OAL H Designation OAL b H GPP-04 8.00 8.0 4.4 GPP-05 8.00 8.0 3.5 GPP-06 8.00 8.0 4.5 GPP-07 10.00 10.0 6.0 GPP-08 14.00 14.0 7.5 GPP-09 18.00 18.0 9.0 • Select an outer cartridge and pad for the required enlarged diameter. 251