B21, China Town Mall, Midrand
Upgrade your drilling equipment with the HY-TLI series bit, an O-ring rubber sealed roller bearing bit designed for high drilling speed. This bit is an ideal and economical tool for various drilling applications, thanks to its advanced features and durable construction.
| Bit Size | 8 3/4" (220.7mm) |
| Thread Connection | 4 1/2" Reg pin |
| Bearing Type | Rubber/Metal O-ring Journal Bearing |
| Recommended Make Up Torque | 16.3~21.7 KN.M |
| WOB (Weight On Bit) | 0.35~0.5 KN/mm |
| Rotary Speed | 70~40 r/min |
| Formation | Medium hard with high compressive strength and thick &hard stringers, such as hard shale, limestone, sandstone, and dolomite. |
Rubber sealed roller bearing structure for high drilling pressure and speed
Surface wear reduction and hardening treatment for improved bearing capacity and anti-bite ability
New high-temperature resistant lubricating grease for improved sealing and lubrication at temperatures up to 250°
High-strength and high-toughness hard alloy teeth for increased impact resistance and reduced tooth breakage
Optimized design for cutting ability and speed with unique alloy tooth shape
Water well drilling
Geothermal well drilling
Oil and gas exploration
Mining operations
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