DTH Drill Bit DHD380-203

Product Description

DTH Hammer Bits DHD380-203

DHD Shank Type DHD380-203 DTH Hammer Bit with concave face, dome buttons for blasting bore holes, water well drilling.

Shank types: DHD3.5, DHD340A, DHD350R, DHD360, DHD380. 

DTH bits hole diameter: 3'', 4'', 5'', 6'', 8''(85mm-305mm)

ROSCHEN is rock drilling tools manufacture, we has a comprehensive range of DTH drill bits with DHD shanks type for a wide range of hole sizes, which have been designed to match all conceivable applications for stone quarrying, water well industries, mining and construction.

Concave Face

The all around application rock drill bit face designed specifically for medium hard and homogeneous rock formations. Good hole deviation control and good flushing capacity.

Dome/Hemispherical Buttons

Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.

Roschen Hammer Bits or DTH Button Bits range in size from 2" hole diameter upwards (50.1mm) to 36” (914.4mm). Roschen always supply stocks DTH Hammers and DTH Button bits for all major DTH Hammer brands and shanks.

When percussion or hammer drilling your choice of hammer bit is just as important as your choice of down hole hammer. DTH stands for “down the hole”. When hammer drilling, the hammer bit gets its energy from repetitive striking of a pneumatic down hole hammers piston. This hammering with slow rotation drives the hammer bit gradually through ground formations. DTH hammer bits are most commonly used in percussion rotary air blast drilling, mining blast holes, and mineral exploration and water well drilling industries.

The cutting interface of the DTH hammer bits are loaded with high quality tungsten carbide, which is an extremely hard material. Since hammer bits work with air pressure delivered to the down hole hammer, it is important to use the recommended pressure provided when hammer drilling. Down hole hammer bits come with a wide variety of carbide styles. The sharper the point, the softer formation it is used for. The different styles of carbides on the hammer face include dome, cone and ballistic tungsten carbide inserts which are press fit into the DTH bit.