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DTH Bit-DHD3.5-100

Diameter: 100mm
Air Holes No.: 2
Gauge Buttons: 7*13mm
Face Buttons: 6*12mm
Approx. Weight: 5kgs
Bit Face Type: Convex face
Carbide Design of DTH Buttons: Parabolic (Semi-Ballistic)
Application:Quarrying,Mining:

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Rock drilling tools: Bit shank type of DHD series DTH Bits are designed to fit DTH hammers, which is the most popular design for blasting bore holes, water well drilling. In conjunction with DTH hammers, DTH hammer bits with DHD shank type are designed with a splined drive for rotating the bit in the ground. Rock drill bits in DHD shank are available in different sizes and different styles so they can drill a wide range of hole sizes.

Features of Convex Face

• This face is designed to offer a high penetration rate in soft rock like shale, limestone etc

• It is recognized for having excellent capability for drilling into moderately consolidated rock conditions

Parabolic/Semi-Ballistic Button

It is usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.


Bloom offers an extensive range of DTH hammer bits with shank type: DHD3.5, DHD340A, DHD3.5R, DHD360, DHD380; and DTH bits hole diameter: 3", 4", 5", 6", 8"(85mm-350mm).


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Contact: Chris Li

Phone: 13867850196

E-mail: sales@bloommachinery.com

Whatsapp:+86 13867850196

Add: Hehua Bridge, Yunlong Town, Yinzhou Distric, Ningbo City, ZheJiang Province