3 Inches DHD3.5 90mm Dth Button Bit For Down The Hole And Water Well Drilling

3 Inches DHD3.5 90mm Dth Button Bit For Down The Hole And Water Well Drilling

DTH Button Bits

DTH bit is the tool cutting rocks, and subject to severe stress from the striking piston as well as from the abrasive cuttings passing the bit at high velocity. When selecting the right bit for optimum performance you have to balance penetration against bit life. On occasion you can successfully sacrifice bit life for penetration, remember the rule of thumb that states that a 10% increase in penetration covers at least a 20% loss in bit life.

Hammer size: 2”~3.5” 4”~8” 10”~32”

Hammer Shank Style: BR, AHD, Cop, Mission...

Mincon, Numa, QL, TD...

SD, DHD, XL, ACD, Mach...

Face Design: Flat, Concave, Convex

​We can design and manufacture the personalized products to meet your specical apllication, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

Competitive Advantage

• High grade tungsten carbide inserts
• Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

DHD3.5 DTH Drill Bit Specification

DHD3.5
Ballistic Convex Face
Bit Diameter (mm)	Bit Diameter (inch)	Buttons (mm)		Flushing holes	Weight (kg)	Part number
		Front	Gauge
90	3 1/2	4*12,2*12	8*12	2	4.5	4148301219
95	3 3/4	4*12,2*12	8*12	2	4.8	4148301220
100	3 7/8	4*13,2*13	8*13	2	5	4148301221
105	4 1/8	4*14,2*14	8*14	2	5.5	4148301222

DHD3.5
Spherical Flat Face
Bit Diameter (mm)	Bit Diameter (inch)	Buttons (mm)		Flushing holes	Weight (kg)	Part number
		Front	Gauge
90	3 1/2	6*12	8*12	2	4.5	4148301223
95	3 3/4	6*12	8*12	2	4.8	4148301224
100	3 7/8	6*13	8*13	2	5	4148301225
105	4 1/8	6*14	8*14	2	5.5	4148301226

Different face style makes DTH bits suitable for various rock conditions.

Flat face: This is an universal design, especially for hard and abrasive rock formation. So typically, flat face with hemi-spherical buttons design is the most popular choice.

Convex face: A classic design for soft to medium hard rock formation which is not so abrasive. This design have very excellent penetration rate but poor in hole deviation if rocks are hard.

Concave face: Medium hard to hard rock formations which is less abrasive and fractured. Especially for deep hole drilling, excellent control over hole deviation.

DGR face: A special design for hard or very hard rock conditions, double gauge row buttons provide very excellent ware-resistance and very longer life time. It is usually used for some bigger diameter DTH bits.
Besides, we are manufacturing the DTH bits with various shanks so they can be compatible with different DTH hammers.

About US

KSQ Technologies (Beijing) Co. Ltd. is a diversified enterprise based in Beijing, China, offering a portfolio of products that help contribute to a better bottom line and increase workplace safety for the construction and mining industries.

KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations. Our operations are based on the unique expertise of our people and knowledge with customer processes.

MIROC® Rock Drilling and Ground Support Tools include:
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers