We are specialized in making down the hole hammer bit since 1990.
Our manufacturing skills, quality control and constant efforts of development are the driving force of lead the market.
DongWoo hammer and bit are made by finest mechanical process, special heat treatment with tight quality control by our engineers.
Therefore, we could manufacture various products with the high speed, pressure intensity and effective air pressure with high durability to use any earth configurations or environmental conditions.
Our DTH hammer and bits are using all over Korea, Japan, China, HongKong, Soudi Arabia and UAE.
We manufacure various size of hammer and bits for any work sites.
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