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| Categories | Hole Opener Bit | 
|---|---|
| Brand Name: | New Diamond | 
| Model Number: | Hole Opener Bits | 
| Certification: | ISO9001:2008 | 
| Place of Origin: | Hunan, China (Mainland) | 
| MOQ: | Negotiable | 
| Price: | Negotiable | 
| Payment Terms: | T/T, L/C, Western Union | 
| Supply Ability: | According to order quantity | 
| Delivery Time: | 5-8 work days | 
| Packaging Details: | Carton packaging and wooden box packing | 
| Type: | Drill Bit | 
| Machine Type: | Drilling Tool | 
| Material: | Carbide | 
| body material: | special steel | 
| Processing Type: | Forging | 
| usage: | drifting and tunneling machine | 
| Use: | Coal Mining | 
| corlor: | customer demand | 
High Precision Hole Opener Bit Drilling Tool For Coal Mining , ISO Standard
Description
New diamond DTH hole openers can provide hole enlargement for
various down-the-hole hammer drilling application needs, reasons
ranging from drilling rig and equipment capabilities to worksite
condition and job specifications. In addition, new diamond hole
openers are available in several different designs,each of which
can be best suited to certain applications. This tool is commonly
utilized for industrial uses to create very large diameter holes.
Applications
It is mainly used in geological exploration, coal mine, water
conservancy and hydropower, highway, railway, bridge, construction
and so on.
Specifications

| D(mm) | D1(mm) | Gauge | Front | Shank | 
| 445 | 305 | 20 | 18 | SD10 SP1080 SP1081 | 
Feature Advantage
1. Factory direct marketing: minimizing costs
2. Quality assurance: professional heat treatment technology, high wear resistance.
3. Inventory guarantee: stable inventory, product specifications, models rich.
4. After sales guarantee: after sales service system at night, rest assured.

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