90mm DHD3.5-90 Concave Face DTH Drill Bit Reinforced with Embedded PDC Cutters

90mm DHD3.5-90 Concave Face DTH Drill Bit Reinforced with Embedded PDC Cutters :

Product Specification

·    Bit Type: DTH Hammer Bit

·    Code No.: DHD3.5-90

·    Diameter: 90 mm

·    Shank Type: DHD3.5

·    Air Holes: 2

·    Gauge Buttons: 7×12mm

·    Face Buttons: 6 ×12mm

·    Face Design: Concave 

·    PDC cutter Configuration: Parabolic (Semi-ballistic) PDC Cutters

·    PDC Function: Improve Wear Resistance & Maintain Hole Diameter

·    Face Design: Concave

·    Application: Quarrying, Mining

The reinforced embedded PDC cutter structure improves drilling stability and reduces gauge wear, making this drill bit suitable for quarrying, surface mining, blast hole drilling, and other demanding rock drilling applications where hole accuracy and long service life are critical.

Product Description

The DHD3.5-90 DTH drill bit features a hybrid cutting structure that integrates premium tungsten carbide buttons with strategically embedded PDC cutters. Rather than replacing the carbide buttons, the embedded PDC cutters strengthen the gauge area, helping to reduce wear, maintain consistent hole diameter, and improve overall drilling durability during extended drilling operations.

The concave face design enhances bit centering and drilling stability, while the semi-ballistic carbide buttons provide an excellent balance between penetration speed and impact resistance. This optimized structure enables smoother drilling, improved hole straightness, and reliable performance in medium-hard to hard rock formations commonly encountered in quarrying and mining.

Key Features

·    Reinforced with embedded premium PDC cutters

·    Hybrid carbide button and PDC cutter structure

·    Concave face for improved hole straightness

·    Semi-ballistic buttons for balanced penetration and durability

·    Enhanced gauge protection and reduced edge wear

·    Stable drilling performance in abrasive formations

·    Extended service life and lower drilling costs

·    Ideal for quarrying and mining applications