| Condition | New | Color | black or Customized |
| Applicable Industries | Construction works , Energy & Mining, Tunneling | Diameter | 45MM-76MM |
| Video outgoing-inspection | Provided | Thread Type | R25,R28,R32,R38,T38,T45,T51 |
| Machinery Test Report | Provided | Key words | Coupling Sleeve |
| Brand Name | Jcdrill | Application | Mining / Quarrying / Tunneling/Blasting |
| Type | Drill Sleeve | Length | 150MM-235MM |
| Machine Type | Drilling Tool | Formation | Hard / Medium hard / Soft Rock Formation |
| Material | Carbide | Bridge type | Semi-bridge / Full-bridge |
| Processing Type | Forging | Raw Material | High quality alloy steel |
| Use | Mining |
ST58 Threaded Coupling Sleeve for Connecting Extension Drill Rod
Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod, ensuring the ends touch for efficient energy transmission. Couplings are also used to connect several rods to each other in the same way. Couplings have a middle stop to prevent over-threading on to the drill rod. We can manufactures semi-bridge, full bridge coupling sleeves for the percussive tools.
| ST58 | ||||||||
| Drill Bit | Bit Dia. | NO x Button x Dia. | Flushing Hole | Weight | ||||
| mm | inch | Front | Gauge | Angle | Front | Side | （KG） | |
 |
spherical Buttons | |||||||
| 89 | 3 1/2 | 6x12 | 8x12 | 35° | 2 | 1 | 4.1 | |
| 89 | 3 1/2 | 6x13 | 8x13 | 35° | 2 | 1 | 4.1 | |
| 89 | 3 1/2 | 4x13,1x13 | 8x13 | 35° | 4 | 4.1 | ||
| 89 | 3 1/2 | 4x12,1x12 | 8x12 | 35° | 4 | 4.1 | ||
| 89 | 3 3/4 | 4x13,1x13 | 8x14 | 35° | 4 | 4.6 | ||
| 102 | 4 | 6x14 | 8x14 | 35° | 2 | 6 | ||
| 102 | 4 | 6x13 | 8x16 | 35° | 2 | 1 | 6 | |
| 115 | 4 1/2 | 6x14 | 8x16 | 35° | 2 | 7 | ||
| Parabolic Buttons | ||||||||
| 89 | 3 1/2 | 6x12 | 8x12 | 35° | 2 | 1 | 4.1 | |
| 89 | 3 1/2 | 6x13 | 8x13 | 35° | 2 | 1 | 4.1 | |
| 89 | 3 1/2 | 4x13,1x13 | 8x13 | 35° | 4 | 4.1 | ||
| 89 | 3 1/2 | 4x12,1x12 | 8x12 | 35° | 4 | 4.1 | ||
| 89 | 3 3/4 | 4x13,1x13 | 8x14 | 35° | 4 | 4.6 | ||
| 102 | 4 | 6x14 | 8x14 | 35° | 2 | 6 | ||
| 102 | 4 | 6x13 | 8x16 | 35° | 2 | 1 | 6 | |
| 115 | 4 1/2 | 6x14 | 8x16 | 35° | 2 | 7 | ||
| Drill Roll | Length | Dimaeter | Weight | |||||
| mm | inch | mm | inch | （KG） | ||||
 |
1525 | 5' | 76 | 2 3/8 | 34 | |||
| 1830 | 6' | 76 | 2 3/8 | 40 | ||||
| 3660 | 12' | 76 | 2 3/8 | 76.3 | ||||
Picture
| Minimum Order Quantity | N/A |
| Price | |
| Packaging Details | Standard Export Delivery Package |
| Delivery Time | 7days |
| Payment Terms | T/T |
| Supply Ability | Based on Detailed Order |
