5′ ′ -146mm DTH Drill Bits for Construction

• Customization: Available
• After-sales Service: Yes
• Warranty: Yes
• Model NO.: 5′′-146mm
• Material: Carburized Steel
• Color: You Wanted
• Application: Water Well Drilling or Mining
• Air Pressure: High Air Pressure
• Advatage: High Performance and Long Service Life
• Transport Package: Plywood Box
• Specification: 5′′ -146mm DTH Bits
• Trademark: SOLLROC
• Origin: Made in China
• HS Code: 82071300
• Production Capacity: 10000/Month

Product Description

Product Introduction
DTH is short for "down-the-hole". Since the DTH method was originally developed to drill large-diameter holes downwards in surface-drilling applications, its name originated from the fact that the percussion mechanism followed the bit down into the hole.
DTH drilling has the feature of efficiency and flexibility.  It's a commonly used method in the mining industry (blast hole drilling), waterwell drilling, construction, and in the oil and gas industry. In DTH drilling, the drill string rotates while the drilling hammer continuously strikes down into the rock.Inside the hammer, a piston powered by compressed air gives the drill bit its striking power. This combined with the rotational movement means the rock is crushed in a very efficient manner.

Product Adavantages
1.Face designs to maximize penetration rate and bit life.
2.for water well, micro piling, geothermal, anchoring 
3. Reliable performance 
4. long service life 
5.easy to maintain 
6.stable

Specification

Bit diameter		Flushing holes No.*Button Dia. mm	No.*Button Dia. mm		Weight (kg)
mm	inch		Gauge Buttons	Front Buttons
130	5 1/8"	2*Ф20	7*Ф16	7*Ф14	15
135	5 1/4"	2*Ф20	7*Ф18	7*Ф14	15.5
140	5 1/2"	2*Ф20	8*Ф16	8*Ф14	16
146	5 3/4"	2*Ф20	8*Ф18	8*Ф15	16.5
150	5 7/8"	2*Ф20	8*Ф18	8*Ф15	16.7
152	6"	2*Ф20	8*Ф18	8*Ф15	16.8
156	6 1/8''	2*Ф20	8*Ф18	8*Ф16	17

DTH Bit Face Introduction
Concave Face design 
For medium soft to medium hard rock conditions in consolidated ground conditions in medium abrasivity rock. Front face grooves provide excellent cuttings removal and the concave center provides optimal hole straightness. The concave design is the most common bit shape. 
Convex Face design 
For medium sotf to medium hard rock in good ground conditions where maximum penetration rate is desired. The convex design will handle abrasive formations better than a concave or flat design. The convex design also enables the use of greater insert density for aggressive spherical, conical or ballistic tipped bits.
Flat Face design 
For hard rock formations where a very durable head is required. The flat face design is very stable and forgiving in fractured, voided or unconsolidated formations. The flat face design also handles abrasive formations well. Some models are available with face slots for improved hole cleaning.

About us
We are able to manufacture, export and supply our clients excellent quality DTH Hammers like DTH Hammer Bits and RC Hammer. These hammers are meticulously manufactured with utmost perfection by utilizing superior quality raw materials and efficient machinery. Sturdy in construction, the provided hammers are specifically designed to suit high pressure drilling rigs. Also, the offered DTH Hammers can be purchased from us in distinct technical specifications at industry leading rates.
At sollroc, customer satisfaction is our top priority. Our sales team takes a proactive approach in meeting customers' needs. We take the time to get to know you and learn about your operations so we can better assist you. We strive to meet customers' needs by supplying the tools and equipment you need when you need them, providing product support, and following through with excellent customer service every step of the way.

Delivery Time
Generally need 15-25 days

Transport Way
By air, By Sea or By Express

Detail photos