DTH Drill Bits 5 1/2”(140mm) For Down The Hole Hammer DHD350,
convex face, dome+semi-ballistic
1. Rapid drilling speed, bit body wearless;
2. Advanced heat treatment process, ensure the drilling life longer
than similar products in the market.
3. DHD, MISSION, SD, QL, NUMA,different series of products, it can
meet needs of different working conditions.
Shank can be available:
1), Dia. 64mm-70mm shank Bulroc BR1
2), Dia. 70mm-95mm shank Halco MACH20, Bulroc BR2
3), Dia. 90mm-102mm shank COP32, COP34, Halco MACH303, M30, DHD3.5,
4), Dia. 105mm-152mm shank COP44, DHD340, Halco MACH44, SD4, M40,
QL40, Bulroc BR4
5), Dia. 135mm-165mm shank COP54, DHD350R, COP54, Halco MACH50,
SD5, M50, QL50, Bulroc BR5
6), Dia. 152mm-254mm shank COP64, DHD360, SD6, M60, QL60, Bulroc
7), Dia. 203mm-330mm shank COP84, DHD380, SD8, QL80
8), Dia. 254mm-380mm shank SD10, Numa100
9), Dia. 305mm-508mm shank DHD1120, SD12, N120, N125
10), Dia. 405mm-864mm shank SD15, SD18
11), VKP80, VKP95, CIR90, CIR100, CIR110, CIR150, CIR200...
Widely used in mines, quarries, earthworks and other engineering
drilling blasting hole, guardrail hole,mountain reinforcement,
anchorage and other engineering holes, geothermal exploration hole,
Well bore and other fields.
Qty.× Button Dia.(mm)
1. Price commitment: in order to ensure the high reliability of
products, raw material selection are using grapefruit brand
products; under the same competitive conditions, and not to reduce
product technical performance on the basis of sincerity at a
favorable price to customers.
2. Quality commitment: product manufacturing and testing have
quality records and inspection data; the performance of the product
can withstand customer inspection.
3. Customer service: in order to create Super Diamond brand,
enhance the visibility of enterprises,establish corporate image, we
serve customers with the principle of "preferential prices, good
service, reliable product quality" principle.
The appearance of the picture is different from that of the actual
product, and the actual product is the standard.