Home ProductsDown Hole Hammer Drill Bits

IR DHD112 Down Hole Hammer Drill Bits 3 Inch -32 Inch DTH Bit Size

IR DHD112 Down Hole Hammer Drill Bits 3 Inch -32 Inch DTH Bit Size

IR DHD112 Down Hole Hammer Drill Bits 3 Inch -32 Inch DTH Bit Size

Product Details:

Place of Origin: Changsha,Hunan,China
Brand Name: Teamwhole
Certification: ISO9001:2008
Model Number: IR DHD112

Payment & Shipping Terms:

Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: dth bits are packed by Woodens outer side, and Cartons inner side.
Delivery Time: Shipped in 25 days after payment
Supply Ability: 5000pcs/month
Contact Now
Detailed Product Description
Model: SD12, Numa100, Numa120, DHD112 Processing Type: Forging
Carbides Shape: Spherical, Ballistic, Parabolic And Conical DTH BIT Colo: Black, Red, Gold, Blue, Grey And Etc
Bit Diameter: 305mm To 445mm Matched Hammer: SD12 DTH Hammer
Appliance: Down The Hole Drilling,Mining,Quarry,Water Well Drilling HS Code: 82071300
DTH Bit Size: 3Inch To 32Inch Processing Type: Processing Type

SD12 305mm, 311mm, 330mm, 356mm, 381mm DTH Drill Bits


About Changsha Tianhe Drilling---


Manufacturer---rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Changsha, Hunan, China.
Experience--in this field of DTH hammers and bits for 20 years.

Export countries---our customers from all over the world, such as France, Spain, Italy, South Africa, Iran, Malaysia, Australia ad etc.


1. IR DHD112 Bit specification

Drill Bit Bit Dia.(mm) NO.Air Gauge Front Weight(Kg) Part No.
Holes Buttons Buttons
DHD112 305 4 12*Φ18 36*Φ16 152 DHD1120-305
311 4 12*Φ18 36*Φ16 157 DHD1120-311
330 4 16*Φ18 42*Φ16 165 DHD1120-330
356 4 16*Φ19 42*Φ16 178 DHD1120-356
381 4 16*Φ19 42*Φ18 198 DHD1120-381
  • Other size from 305mm to 445mm are available

2. DTh Bit Shank can be available:

1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5, Bulroc BR3
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40, QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50, SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc BR6
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD18


3. Bit Face Shape Selection:

1) Drop Center Bit

----For high penetration rates in soft to medium hard and fissured rock formations. 

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.


4. Carbide Button Shape Selection:

1. Semi-Ballistic Buttons

2. Ballistic Button

3. Spherical Button

4. Two-step Button


5. Photos:

IR DHD112 Down Hole Hammer Drill Bits 3 Inch -32 Inch DTH Bit Size


Contact Details
Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.

Contact Person: Ms.chen

Send your inquiry directly to us (0 / 3000)

Other Products