Also known as road and highway “patchwork,” full-depth repair involves cutting out and replacing damaged sections of concrete. When these “patches” are many and far apart, dowel pin drilling can be ...

Many types and sizes of drilling machines are used in manufacturing. They range in size from a simple bench mounted sensitive drill press to the large multiple-spindle machines able to drive many ...

BLACK+DECKER LD12SP 12V 10mm Li-ion Cordless Variable Speed Reversible Drill Machine Driver with 10 Screwdriver & 2 Drill Machine Bits for Home & DIY Use, 1 Year Warranty, ORANGE & BLACKView Details ...

The new Cat ® MD6250 blasthole drill delivers optimum drilling efficiency in single- and multi-pass applications for both rotary and down-the-hole (DTH) modes. Featuring automated operation, the drill ...

A new type of parallel operation unit for excavating and supporting anchors is proposed to address the issue of imbalanced excavation anchor ratio in coal mines. By equipping a straddle type anchoring ...

Milling machines are nice to have around for precisely drilling holes or removing unwanted material from a part. However, they can be expensive and may not get a lot of use, two reasons why a mill ...

During the drilling operations and because of the harsh downhole drilling environment, the drill string suffered from downhole vibrations that affect the drilling operation and equipment. This problem ...

On Saturday, a tunnel boring machine (TBM) so large that it looks like something out of Thunderbirds was dedicated in the city of Seattle. “Bertha,” as it’s known, is the world’s largest TBM and will ...