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{"title":"High Strength Alloy Steel Taper Drill Rod 1200mm-1800mm With Rubber Collar","imgUrl":"https:\/\/img.chinax.com\/nimg\/24\/35\/a2c76f4393519633f34be5126012-200x200-1\/high_strength_alloy_steel_taper_drill_rod_1200mm_1800mm_with_rubber_collar.jpg","attrs":{"Brand Name":"HLDRILL","Place of Origin":"China","Certification":"ISO9001","Minimum Order Quantity":"10PCS"}}
{"title":"1030mm-1150mm Twist Drill Rod For Coal Mining \/ Tunnel Drilling","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/a7\/57d30d388cb00a8fe6889f6a5e5d-200x200-1\/1030mm_1150mm_twist_drill_rod_for_coal_mining_2f_tunnel_drilling.jpg","attrs":{"Brand Name":"HLDRILL","Model Number":"GB","Place of Origin":"CHINA","Minimum Order Quantity":"10PCS"}}
{"title":"R25 Drill Rod Wear Resistant High Toughness With 23CrNi3Mo Material","imgUrl":"https:\/\/img.chinax.com\/nimg\/db\/16\/4709ac918c68fdc25ec5f8d4c694-200x200-1\/r25_drill_rod_wear_resistant_high_toughness_with_23crni3mo_material.jpg","attrs":{"Brand Name":"HLDRILL","Place of Origin":"CHINA","Minimum Order Quantity":"10PCS","Price":"Please contact us"}}
{"title":"Rock Drilling H22 Tapered Drill Rod 500mm-6400mm Length With 7\u00b0 Taper Angle","imgUrl":"https:\/\/img.chinax.com\/nimg\/66\/b9\/4ecf7634271d836513a39f2568f0-200x200-1\/rock_drilling_h22_tapered_drill_rod_500mm_6400mm_length_with_7_c2_b0_taper_angle.jpg","attrs":{"Brand Name":"HLDRILL","Model Number":"Hex22","Certification":"ISO9001","Place of Origin":"China"}}
{"title":"Quick Connect MF Drill Rods Wear Resistant For Tunnel Excavation Projects","imgUrl":"https:\/\/img.chinax.com\/nimg\/00\/f7\/58dd05876cec612d321a7988b55f-200x200-1\/quick_connect_mf_drill_rods_wear_resistant_for_tunnel_excavation_projects.jpg","attrs":{"Brand Name":"HLDRILL","Certification":"ISO9001","Place of Origin":"China","Minimum Order Quantity":"10 PCS"}}
{"title":"Drifter Hexagonal Drill Rod Impact Resistant For Mining \/ Tunnel Excavation","imgUrl":"https:\/\/img.chinax.com\/nimg\/66\/8d\/6450b1f4f8f3d1e1e4f04067ca72-200x200-1\/drifter_hexagonal_drill_rod_impact_resistant_for_mining_2f_tunnel_excavation.jpg","attrs":{"Brand Name":"HLDRILL","Certification":"ISO9001","Place of Origin":"China","Minimum Order Quantity":"10 PCS"}}
High Strength Alloy Steel + Tungsten Carbide Insert
Connection Type
7° Tapered , Zero Slip Fit
Treatment Process
Induction Heat Treatment
Key Performance
High Bending Stiffness Impact Fatigue Resistance
Application
Underground Tunneling Open Pit Mining
Suitable Rock
Granite , Basalt , Abrasive Formations
Advantage
Lower Energy Consumption Reduced Downtime
Service Life
Extended Bit Replacement Interval
Brand Name
HLDRILL
Certification
ISO 9001 Certified
Place of Origin
CHINA
H22 Drill Rod With 7° Chisel Bit , High Strength Alloy Steel , Tungsten Carbide Insert For Zero Slip Fit Drilling
In the competitive landscape of modern mining, profitability depends on equipment that balances extreme durability with operational precision. Our integrated drilling solution — combining high tenacity H22 drill rods with precision-engineered 7° chisel drill bits — is designed to excel where standard tools fail.
Superior Engineering Durability
Engineered from premium grade high strength alloy steel, our H22 rods undergo rigorous induction heat treatment. This technical advantage provides superior bending stiffness and impact fatigue resistance, essential for deep hole stability.
Eliminates risk of bit detachment and vibration induced energy loss
Optimized for high frequency percussion drilling
Optimized Performance Design
The 7° taper design is a performance optimizer, not just a standard. Equipped with ultra-tough tungsten carbide inserts, our 7° chisel bits maintain peak sharpness even in abrasive granite or basalt.
This optimized cutting geometry significantly reduces energy consumption per meter drilled, making it an eco-conscious choice for mines looking to lower carbon footprint and fuel costs.
Operational Cost Benefits
By reducing unexpected downtime and extending intervals between bit replacements, the H22 / 7° synergy directly lowers your Total Cost of Ownership (TCO). Whether managing complex underground tunneling or large scale open pit excavations, our tools deliver the consistency required for 24 / 7 operations.
Stop settling for "good enough." Upgrade to a drilling kit that accelerates penetration rates and protects your bottom line.
HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr... HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr...
