| Sign In | Join Free | My howtoaddlikebutton.com | 
 | 
Brand Name : Tianhe
Model Number : QL50-140 drill bit
Certification : ISO9001
Place of Origin : HUNAN CHANGSHA
MOQ : 1
Price : Negotiation
Supply Ability : 5000pcs/month
Delivery Time : Shipped in 25 days after payment
Packaging Details : dth bits are packed by Woodens outer side, and Cartons inner side.
Rock drilling tools : DTH drill bit
Material : Carbide
Processing type : Forging
Color : Glod(as you need)
Use : blasting,mining,tunneling project
Samples : Avaliable


| General Introduction | 
Bit Face Shape Selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-around application bit face specifically for medium hard and homogeneous rock formations.
Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce theload and wear on the gauge buttons, but poor hole deviation control.
4. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.
Carbide Button Shape Selection:
1. Semi-Ballistic Buttons
2. Ballistic Button
3. Spherical Button
4. Two-step Button
Our Advantages:
We have advanced production equipment & talented researchers & technicians & rich experiences in R & D and production.
 We using the best quality raw materials.
 We adopting advanced production technology & strict testing procedure.
 We passed ISO9001 quality management system certification.
 We accept OEM manufacturing and produce on your design.
|   | 
| High Strength DTH Drilling Tools Long Life 5 Inch QL50-140 Button Bits Images | 
 Construction DTH Drilling Tools Ore Mining 219mm Dia DHD360 Drill Bit Button
                                                                                    
                        
                        
                        
                                                            Construction DTH Drilling Tools Ore Mining 219mm Dia DHD360 Drill Bit Button
                                                    
                        
                     Blast Hole Drilling Dth Tools , 191mm Dia Size 6 Inch Threaded Button Bits
                                                                                    
                        
                        
                        
                                                            Blast Hole Drilling Dth Tools , 191mm Dia Size 6 Inch Threaded Button Bits
                                                    
                        
                     Advanced 165mm Diameter DTH Hammers And Bits , DHD360 Water Drilling Tools
                                                                                    
                        
                        
                        
                                                            Advanced 165mm Diameter DTH Hammers And Bits , DHD360 Water Drilling Tools
                                                    
                        
                     Flat / Concave Spherical Button Bit , 140 152 165mm 5 Inch DHD350 Hammer Well
                                                                                    
                        
                        
                        
                                                            Flat / Concave Spherical Button Bit , 140 152 165mm 5 Inch DHD350 Hammer Well
                                                    
                        
                     Gold concave sperical 8 inch DTH drilling tools SD8 drill bit 216 mm
                                                                                    
                        
                        
                        
                                                            Gold concave sperical 8 inch DTH drilling tools SD8 drill bit 216 mm
                                                    
                        
                     Flat / Concave Spherical Button Bit , 140 152 165mm 5 Inch DHD350 Hammer Well
                                                                                    
                        
                        
                        
                                                            Flat / Concave Spherical Button Bit , 140 152 165mm 5 Inch DHD350 Hammer Well
                                                    
                        
                     Abrasion Resistant DTH Drilling Tools 6'' DHD360 152 165 171mm Dia Dth Bits
                                                                                    
                        
                        
                        
                                                            Abrasion Resistant DTH Drilling Tools 6'' DHD360 152 165 171mm Dia Dth Bits
                                                    
                        
                     Deep Hole Drilling DTH Drilling Tools 20-100m Depth TS Series DTH Hammer
                                                                                    
                        
                        
                        
                                                            Deep Hole Drilling DTH Drilling Tools 20-100m Depth TS Series DTH Hammer
                                                    
                        
                     TG SERIES DTH Water Well Drilling Hammer , Blasting / Mining DTH Installation
                                                                                    
                        
                        
                        
                                                            TG SERIES DTH Water Well Drilling Hammer , Blasting / Mining DTH Installation
                                                    
                        
                     Thrc Series Dth Drilling Tools Dth Hammer / Bits For Exploration / Investment
                                                                                    
                        
                        
                        
                                                            Thrc Series Dth Drilling Tools Dth Hammer / Bits For Exploration / Investment