100mm DHD3.5-100 Concave DTH Drill Bit Reinforced with Embedded PDC Cutters for Quarrying & Mining

100mm DHD3.5-100 Concave DTH Drill Bit Reinforced with Embedded PDC Cutters for Quarrying & Mining :

Product Specification

·    Bit Type: DTH Hammer Bit

·    Code No.: DHD3.5-100

·    Diameter: 100 mm

·    Shank Type: DHD3.5

·    Air Holes: 2

·    Gauge Buttons: 7 × 13 mm

·    Face Buttons: 6 × 12 mm

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

·    PDC Cutter Function: Improve Wear Resistance & Maintain Hole Diameter

·    Face Design: Concave

·    Application: Quarrying, Mining

The DHD3.5-100 is suitable for quarrying, mining, blast hole drilling, road construction, and infrastructure rock excavation. Its embedded PDC cutter reinforcement improves gauge durability, while the concave face design enhances cuttings removal for efficient drilling in medium-hard and hard rock formations.

Product Description

The 100mm DHD3.5-100 DTH drill bit is designed for quarrying and mining applications where efficient cuttings removal and drilling stability are essential. Reinforced with embedded premium PDC cutters and equipped with semi-ballistic carbide buttons, it delivers consistent penetration, enhanced gauge protection, and long service life in medium-hard to hard rock formations.

Embedded PDC Cutters for Small-Diameter Precision Drilling

The DHD3.5-100 DTH drill bit combines premium semi-ballistic 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 while maintaining accurate hole diameter throughout continuous drilling operations.

Its concave face design promotes efficient cuttings evacuation by directing broken rock away from the drilling face, helping reduce regrinding and improve drilling efficiency. Semi-ballistic carbide buttons provide a balanced combination of penetration speed and impact resistance, making this drill bit ideal for demanding quarrying and mining environments.

Designed for long service life and reliable performance, the DHD3.5-100 helps improve productivity while lowering maintenance and replacement costs.

Key Features

·    Reinforced with embedded premium PDC cutters

·    Concave face for improved cuttings removal

·    Semi-ballistic carbide buttons for balanced drilling performance

·    Enhanced gauge protection and wear resistance

·    Stable penetration in medium-hard and hard rock

·    Reduced regrinding for higher drilling efficiency

·    Long service life with lower operating costs

·    Designed for quarrying and mining applications