- Product category：Conventional PDC Bits
- Name：13-1/8"STS635RS
- Product Type：13115
- Hits：1491
Introduction
13-1/8" STS635RS/ S223
Recommended Operating Parameters
| Blade Count | 5 Sprail Blades |
| Primary Cutter Size | Ф16 mm |
| Face Cutters（Count） | Ф16 mm ( 21 ) |
| Cone Cutters（Count） | Ф16 mm ( 13 ) |
| Gauge Cutters（Count） | Ф16 mm ( 7 ) +Ф13 mm ( 1 ) |
| Back-Up Cutters（Count） | Ф16 mm ( 15 ) |
| Nozzles | 7 Standard Series (SP) |
| Gauge Length | 3.5", Options available |
| Junk Slot Area | 46 in2 |
| Bit Connection | 6-5/8" API REG |
| Bit Length | Make-Up: 14.3" Overall: 19.3" |
| Fishing Neck | Diameter: 8" Length: 5.2" |
Recommended Operating Parameters
| Flow Rate | 38~62 LPS |
| Rotary Speed | 60~300 RPM |
| Weight-on-Bit | 20~160 KN |
| Max. Weight-on-Bit | 180 KN |
| Make-Up Torque | 49.6~51.4KN.m |