saint

Snow Shoveling Information Saint Paul Minnesota

The depths of the drill holes in these materials vary from four to 20 ft. they are made with a drill, or, in the softer supplies, with an auger comparable to a plank auger, commonly about 2 ins. Diameter, with extension pieces for deep holes, as shown in Fig. Crowbars and wooden and iron wedges are also usually employed in breaking down overhanging material when it cannot rather be reached by the dipper. Just after the 1st loading track has been laid in this trench, the cuts are created as indicated in Fig. The mast or post is produced of...