Hot Sale Drilling Tools in Chile: A Comprehensive Guide for Mining & Drilling Buyers

Chile, a global leader in mining (especially copper, lithium, and gold), has a soaring demand for high-performance drilling tools that can tackle its diverse and challenging geological formations—from loose pebbles and dry rocks to large boulders and construction backfill. For buyers of mining machinery, air compressors, water well drills, and core drills, understanding the hot sale drilling tools in Chile is critical to optimizing project efficiency and reducing operational risks. Below is a detailed breakdown of the most sought-after products and their value.

Chilean customer feedback graph


2. Concentric Drilling Tools: The Game-Changer for Complex Formations
The biggest challenge in Chilean drilling projects is dealing with loose, unstable overburden—where hole collapse and tool burial are common. After years of on-site testing, concentric drilling tools (from D Mininwell Drilling Tools) have emerged as the most versatile solution, outperforming eccentric and slider systems in adaptability. Here’s why they’re a top choice:
A. Structure of the Concentric Casing System
The system’s modular design ensures simplicity and reliability, consisting of three core components:
Casing Shoe: Connects to the casing tube, protecting the tube from damage during penetration.
Ring Bit: Links the pilot bit to the casing shoe, ensuring alignment and efficient cuttings removal.
Pilot Bit: The heart of the system, equipped with tungsten carbide buttons and flushing grooves to enhance drilling speed and debris clearance.
B. Step-by-Step Operation Procedure
Use the concentric system to drill through overburden (pebbles, cracks, or boulders).
Reverse-rotate the DTH hammer to pull out the pilot bit.
Replace the pilot bit with a standard drill bit to continue drilling into harder rock layers.
C. Technical Parameters (Critical for Buyer Selection)
Below is a simplified table of popular concentric drilling tool models in Chile, helping you match tools to your project needs (e.g., hole depth, casing size, or compatible DTH hammers):
Model    Casing OD (mm)    Casing ID (mm)    Wall Thickness (mm)    Max Hole Depth (m)    Matching DTH Hammer    Weight (KG)
P114/9-84    114    94    10    150    COP34/DHD3.5/MW3.5    10
P140/10-97    140    120    10    150    COP44/DHD340(MW4)/SD4    21
P178/12.7-131    178    152.6    12.7    150    COP54/DHD350(MW5)/QL50    32.5
P219/12.7-170    219    193.6    12.7    150    COP64/DHD360(MW6)/SD6    58
P325/12.7-276    325    299.6    12.7    150    COP84/DHD380(MW8)/QL80    135
D. Unbeatable Advantages for Chile’s Conditions
Superior Straightness: Guarantees precise hole alignment, critical for core drilling and foundation pile projects.
Strong Adaptability: Handles complex formations (pebbles, dry rocks, construction waste) without efficiency loss—perfect for Chile’s mining regions.
Low Torque: Reduces wear on drill rods and air compressors, lowering maintenance costs.
Flexible Drilling Angles: Supports vertical, horizontal, and inclined drilling, ideal for water well installation and underground mining.
Urban-Friendly: Low vibration and noise make it suitable for projects near cities (e.g., Santiago), complying with local environmental regulations.

Structure of concentric casing system

 

3. Why These Tools Are Trusted by Chilean Buyers

Chilean customers (like Joge Acevedo, who rated the tools “100% recommendable”) highlight three key factors:

• Durability: Tools withstand Chile’s harsh mining conditions, reducing replacement frequency.
• After-Sales Support: Suppliers offer fast delivery and technical assistance for tool installation/repair.
• Cost-Efficiency: High drilling speed and low maintenance translate to lower per-meter drilling costs.

 Operation procedure

1. Concentric system drilling through overburden
2. Reverse rotation of the hammer and pull out the pilot bit.
3. Replace the pilot bit to normal bit to continue drilling

3. How to connect concentric drill bit, down-the-hole hammer and casing shoe

NO	Items	Description
1	Casing  tube	a. Threaded casing tube,left tuming thread
		b.Weldied casing tube
2	Drill  rod	ThreadAPI[REG/IF/NC
3	Stabilizer	Thread of stabizer is in keeping with drillng pipe
4	Hammer	Thread modelAPI REG
5	Concentric   Overburden Drilling   System	See the fallowed form for the specs

4. Scope of application:
Applicable to overburden with complex dry geological conditions, such as pebbles, cracks, dry rocks, boulders, construction backfill waste, etc. Drilling holes at any angle with high straightness
The maximum hole depth can reach 150 meters

5. Structural advantages:
Straightness: Under different geological structures, the straightness of hole formation can be guaranteed
Adaptability: In complex geological structures, such as pebbles and construction waste, the drilling efficiency can be guaranteed.
Less Torque: Less torque compared to eccentric drilling system.
Easy to Unlock and Relock: Easy to relock after unlocking.
Drilling at any angle: the concentric tubular drilling tool can drill in vertical, horizontal and inclined states.
Environmental protection: Compared with eccentric drilling tools, it is more suitable for construction in urban areas because of its stable drilling, low vibration and low noise.
 

Technical Parameters of Concentric drilling tools
Size	OD of casing pipe(mm)	ID of casing pipe(mm)	Wall thickness	Center drill	Perforated	Allow pass	Matching DTH Hammer	Weight (KG)
			(mm)	bit most	size	drill bit diameter
				Large outer diameter	(mm)	(mm)
				(mm)
P114/9-84	114	94	10	94	126	84	COP34/DHD3.5/MW3.5	10
P127/10-93	127	107	10	105	142	93	COP34/DHD3.5/MW3.5	16
P140/10-97	140	120	10	116	161	97	COP44/DHD340（MW4）/SD4/QL40	21
P146/10-110	146	126	10	124	165	110	COP44/DHD340/(MW4)/SD4/QL40	22
P168/12.7-127	168	142.6	12.7	141	188	127	COP54/DHD350（MW5）/SD5/QL50/M50	27
P178/12.7-131	178	152.6	12.7	150	196	131	COP54/DHD350（MW5）/SD5/QL50/M50	32.5
P194/12.7-145	194	168.6	12.7	166	214	145	COP64/DHD360(MW6)/SD6/QL60/M60	42.5
P219/12.7-170	219	193.6	12.7	191	243	170	COP64/DHD360{MW6)/SD6/QL60/M60	58
P245/12.7-195	245	219.6	12.7	214	268	195	COP84/DHD380/(MW8)/SD8/QL80	78
P254/12.7-203	254	228.6	12.7	224	276	203	COP⁸4/DHD380(MW8）/SD8/QL80	84.5
P273/12.7-223	273	247.6	12.7	241	298(305)	223	COP84/DHD380(MW8)/SD8/QL80	100
P325/12.7-276	325	299.6	12.7	292	350	276	COP84/DHD380(MW8）/SD8/QL8O	135
P406/12.7-350	406	380.6	12.7	377	442	350	DHD112(MW12)/QL120/SD12/NUMA120	280
P508/12.7-416	508	482.6	12.7	478	545	416	QL200/SD18/NUMA180/MW18	522
P560/12.7-475	560	534.6	12.7	528	595	475	QL200/SD18/NUMA180/MW18	620
P610/12.7-513	610	584.6	12.7	558	645	513	QL200/SD18/NUMA180/MW18	710

Factory Photo