DLD RS7 x Самс/W 122X450/10X1 1/4 UNC DLD 122 RS7 x concrete, strong reinforced concrete segment with diamonds is oriented. High drilling speed in difficult conditions. May be small water cooling. Stable performance in a wide range of conditions (horizontally, Tiefbohrend). Laser welded technology the production type drill use crown steel concrete, concrete with a diameter 102.0 (mm) Length 450,0 (mm)
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