7 Rock Drilling T ools 800 8726899 Brunner Lay Part Number Inserts Holes Inches MM Pounds Kilos Gauge Mid Face To p Side R eaming Bits 312 89 S35P AP0 39 18 8 6 4 102 S40PBP0 49 22 8 4 Part Number Inches MM Pounds Kilograms Pilot Ada ptor s 925 235 CP30R32 5 23 925 235 CP43R32 55 25 R eaming Equipment Length W eight