90mm DHD3.5-90 Concave DTH Drill Bit with Embedded PDC Cutters for Quarrying & Mining

90mm DHD3.5-90 Concave DTH Drill Bit with Embedded PDC Cutters for Quarrying & Mining :

Product Specification

·    Bit Type: DTH Hammer Bit

·    Code No.: DHD3.5-90

·    Diameter: 80 mm

·    Shank Type: DHD3.5

·    Air Holes: 2

·    Gauge Buttons: 8 × 12 mm

·    Face Buttons: 6 × 12 mm

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

·    PDC Function: Gauge Protection & Wear Resistance

·    Face Design: Concave

·    Application: Quarrying, Mining

The reinforced embedded PDC cutter structure and enhanced gauge-button configuration make this drill bit suitable for quarrying, surface mining, blast hole drilling, and other demanding rock drilling projects where long service life and stable hole quality are required.

Product Description

The 90mm DHD3.5-90 DTH drill bit is reinforced with embedded premium PDC cutters and features a concave face with an enhanced 8-gauge-button layout. Designed for quarrying and mining, it provides excellent gauge protection, reliable drilling stability, and extended service life in abrasive rock formations.

Embedded Premium PDC Cutters for Maximum Wear Resistance

The DHD3.5-90 DTH drill bit combines premium tungsten carbide buttons with strategically embedded PDC cutters to create a durable hybrid drilling structure. The embedded PDC cutters reinforce the gauge area, reducing wear and maintaining consistent hole diameter throughout extended drilling operations.

Compared with standard 90 mm configurations, the optimized 8-gauge-button layout provides stronger peripheral support and better resistance to gauge wear. The concave face improves drilling stability and cuttings evacuation, while the semi-ballistic carbide buttons deliver an excellent balance of penetration speed and durability.

This design is well suited for quarrying, mining, and other demanding rock drilling applications where reliable performance and long service life are essential.

Key Features

·    Reinforced with embedded premium PDC cutters

·    Optimized 8-gauge-button layout for enhanced gauge protection

·    Concave face for improved hole straightness

·    Semi-ballistic carbide buttons for balanced penetration

·    Reduced gauge wear in abrasive formations

·    Stable drilling performance during continuous operation

·    Long service life with lower maintenance costs

·    Suitable for quarrying and mining applications