3.5 Inch DHD3.5 Convex Spherical DTH Drill Bit

• Customization: Available
• After-sales Service: Available
• Warranty: One Year
• Model NO.: DHD3.5-90
• Standard: GB
• Surface Treatment: Spray-Paint
• Manufacturing Process: Forging
• Material: Alloy Steel
• Size: DHD3.5-90
• Bit Face: Spherical,Concave,Flat
• Application: Water Well,Mining
• Matched DTH Hammer: DHD3.5 Hammer
• Painting: Yellow, Blue, as Customer Needed
• Marketing Type: Hot Products 2023
• Transport Package: Plywooden Case
• Specification: 3 1/2 inch
• Trademark: Teamwhole
• Origin: Hunan, China
• HS Code: 82071990
• Production Capacity: 5000PCS

Product Description

 General Introduction

3.5 inch DHD3.5 CONVEX SPHERICAL DTH Drill Bit

 

Shank:DHD3.5,COP32,COP34,MACH303,BR33

Application range: All kinds of rock formation.Widely used in blasting holes.

Face design: flat, convex, concave

Inserts design: spherical, ballistic, parabolic

 

Features:

1.Reliable quality, long service life,  rare abnormal breakage during service life.

 2.Good flushing effect to ensure high drilling rate

 3.Strict quality warranty and compensation rules

 4.Reasonable designs

  5.High penetration

 

Markets: Italy, France, Russia, Greece,Canada,Korea, Chile, Brazil, Nigeria, Mongolia and etc.

 

Order Guide  Bit Dia.+ Shank + Face shape + Carbide button shape    Examples For Ordinary Bits Flat, spherical(other designs of faces and inserts are available)
Bit Dia.(mm)	Qty.× Button Dia.(mm)		Qty.Air Holes	Weight (kg)	Product Code
	Outer	Front
85	6×13	4×12	2	4.8	110524
90	6×14	4×13	2	4.9	110104
95	6×14	4×13	2	5.2	204050
100	6×14	5×13	2	5.8	110144
102	6×14	5×13	2	5.9	110554
105	6×14	5×13	2	6.2	110194
115	8×14	7×13	2	6.7	110214
125	8×14	7×13	2	7.2	110994

 

 

    

3.5"(102mm)drill bit:8 splines

Applicable hard very hard and medium soft rock formation.

 

High strength structure alloy steel and carbides

With 2 air holes and 2 flushing holes

Good flushing effect to ensure high drilling rate.





 

 

 Package