90mm DHD3.5-90 Flat Face DTH Drill Bit with Embedded PDC Cutters for Quarrying & Mining
Code No.: DHD3.5-90
Diameter: 90 mm
Inserts: PDC cutters
Face Design: Flat
90mm DHD3.5-90 Flat Face DTH Drill Bit with Embedded PDC Cutters for Quarrying & Mining :
Product Specification
· Bit Type: DTH Hammer Bit
· Code No.: DHD3.5-90
· Diameter: 90 mm
· Shank Type: DHD3.5
· Air Holes: 2
· Gauge Buttons: 7
· Face Buttons: 6
· PDC cutter Type: Rocket PDC Cutters
· PDC Cutter Function: Improve Wear Resistance & Improved Hole Quality
· Face Design: Concave
· Application: Quarrying, Mining
Ideal for quarrying, mining, blast hole drilling, and general hard rock drilling. The embedded PDC cutter reinforcement improves gauge durability and extends bit life, while the rocket button design provides efficient penetration in demanding formations.

Product Description
The 90mm DHD3.5-90 DTH drill bit is designed for quarrying and mining applications. Featuring embedded premium PDC cutters, a flat face profile, and rocket carbide buttons, it delivers rapid penetration, reliable gauge protection, and extended service life in medium-hard to hard rock formations.
Embedded PDC Cutters for Small-Diameter Precision Drilling
The DHD3.5-90 DTH drill bit combines rocket-shaped tungsten carbide buttons with strategically embedded premium PDC cutters to create a durable hybrid drilling structure. The embedded PDC cutters strengthen the gauge area, helping reduce wear, maintain accurate hole diameter, and extend the service life of the drill bit.
Its flat face design transfers impact energy efficiently, while the rocket button configuration improves penetration speed in medium-hard and hard rock. This combination makes the DHD3.5-90 an excellent choice for quarrying, mining, and production drilling where productivity and durability are equally important.
Key Features
· Reinforced with embedded premium PDC cutters
· Rocket carbide buttons for fast rock penetration
· Flat face design for efficient energy transfer
· Enhanced gauge protection and reduced edge wear
· Stable drilling performance in abrasive formations
· Long service life with lower drilling costs
· Suitable for quarrying and mining applications














