CORE DRILL RIG

Brand	Owner	Address	Description
DR 150	HUSQVARNA PROFESSIONAL OUTDOOR PRODUCTSINC.	1030 STEVENS CREEK ROAD AUGUSTA GA 30907	CORE DRILL RIG;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A drill for producing a deep hole that does not produce a bend of the hole during cutting. A drill body is spirally provided with a pair of cutting edges. The cutting edges are spaced at about 180 degrees apart around a core of the drill and the edge line of a tip section of the cutting edges is depressed toward the core of the drill. When the outside dimension of the drill is 7.4 mm, an angle between the edge line and a line perpendicular to the core is 5 degrees and the core thickness (t) is 2.96 mm. Further, the drill is provided with a guide section for preventing bending during a cutting operation. The guide section is provided on a heel side on the same circumference as that on which the outer end section of the cutting edges passes.