Technical Specification
| Model # | Prisma 3 | |
| Drill pipe connection | API 2 3/8 in Reg. Pin | |
| Bit shank type | DHD 3.5 | |
| Length w/o bit shoulder to shoulder | 776 mm | 30.5" |
| Length with bit extended | 871 mm | 34.3" |
| Length with bit retracted | 841 mm | 33.1" |
| Weight w/o bit | 20.2 kg | 44.5 lb |
| Backhead across flats | 57 mm | 2.2" |
| Rec. bit size | 90 mm & above | 3.54" & above |
| Outside diameter | 78 mm | 3.1" |
| Piston weight | 4.06 kg | 8.9 lb |
| Maximum Operating Pressure | 17 bar | 250 psi |