professional diamond core drill bit with high qulity

Product Introduction

This diamond core drill bit has excellent ability in drilling concrete, reinforced concrete and brick wall. Thinner diamond segment and thinner tube wall can easily reduce the resistance and increase the drilling speed .

Main Parameter

About Us

Shandong China Coal Industrial & Mining Supplies Group Co.,ltd is a big joint stock enterprise founded in the early 1980s,registered capital is 138million yuan. The group total has 1100 employees,3 wholly owned subsidiaries and 18 professional branches.Hundreds of our products are exportedto Australia,Russia, Colombia,
Ukraine,Georgia, the United states,Southeast Asia and so on more than 60 countries and regions.