Rock Drilling T ools 26 www brunnerlay com Brunner Lay Part Number Inserts Holes Inches MM Pounds Kilos Gauge Mid Center To p Side Button Bits Drop Center 4 102 S4060D0 105 48 8716 412 2716 4716 412 11 5 S4560D0 136 62 8716 412 2716 4716 5 127 S5060D0 154 70 8716 412 2716 4716 512 140 S5560D0 266 121 858 458 312 4916 6 152 S6060D0 304 138 858 458 312 4916 Retrac 4 102 S4060DW 146 66 8916 4916 312 4716 412 11 5 S4560DW 164 74 8916 4916 312 4716 5 127 S5060DW 182 82 8916 4916 312 4716 512 140 S5560DW 354 161 858 458 312 412 6 152 S6060DW 416 189 858 458 312 416 Drop Center B60 238 60MM Part Number Feet MM Pounds Kilograms Extension R ods Guide Rod 238 Round 12 3660 J9150PPG 1 128 512 14 4265 J9174PPG 1316 597 MaleFemale 238 Round 12 4 3760 J9150P4FR 1253 568 14 4 4370 J9174P4FR 1450 658 20 4 6198 J9246P4FR 2005 909 Length W eight Button Bits are available with Standard Parabolic Ballistic or Conical Carbide Parabolic P as the last digit Ballistic B as the last digit Conical C as the last digit Diameter W eight