8 Blind hole head CBH 5 Raise diameter 1524 mm 60 in Pilot Rod Head Stem Saddles Cutters with saddles in mm Part No. Part No. Part No. Position Part No. Number 1-2 7008-2006 12 1/4 311 7008-9187 7008-1215-30 7008-3831 3-4 7008-2005 8 5-8 7008-2007 Weights Kg lb Pilot Rod 400 800 Stem 600 1320 Head 1900 4190 Saddles 600 1320 Gauge rollers 250 550 Cutters 800 1760 Total 4450 9820 Pilot hole drilling Pilot Bits Diameters 229 to 381 mm 9 to 15 in SCMH = Sealed bit for any rock formation. IADC code 725. Other bit types on request. XXX= Professional nozzle size. Ex: 205 = 20.5 mm ((13/16”) Diameter Pin size Weight Type Part No. in mm API, reg kg lb 9 229 4 1/2” 45 100 229SCMH 7006-7229-7XXX 9 7/8 251 6 5/8” 62 137 251SCMH 7006-7251-7XXX 11 279 6 5/8” 75 165 279SCMH 7006-7279-7XXX 12 1/4 311 6 5/8” 100 220 311SCMH 7006-7311-7XXX 13 3/4 349 6 5/8” 120 164 349SCMH 7006-7349-7XXX 15 381 7 5/8” 160 353 381SCMH 7006-7381-7XXX 6-2/160 CBH 5 1524 8 4 5 1 2 7 3 6 Cutter position for required spacing Spacing Cutter Cutters Gauge roller Rock condition mm in type Part No. Number Part No. Soft to medium 51 2 CMR-52 7008-4152-76 8 Medium to hard 22.5 1 CMR-41 7008-4141-76 4 7008-4851-72 CMR-52 7008-4152-76 4 1800 826 400