DRILL BITS FOR POWER OPERATED

Brand	Owner (click to sort)	Address	Description
CONECUT	International Telephone and Telegraph Corporation	New York NY	Drill Bits for Power Operated Drills;
QUALITYMASTER	SCOA INDUSTRIES INC.	Columbus OH	Drill Bits for Power Operated Drills;Paint Brushes;
QUALITYMASTER	HILLS STORES COMPANY	15 DAN ROAD CANTON MA 02021	DRILL BITS FOR POWER OPERATED DRILLS;PAINT BRUSHES;QUALITY MASTER;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method for evaluating a cutting arrangement for a drill bit includes selecting a cutting element arrangement for the drill bit and calculating a score for the cutting arrangement. This method may be used to evaluate the cutting efficiency of various drill bit designs. In one example, this method is used to calculate a score for an arrangement based on a comparison of an expected bottomhole pattern for the arrangement with a preferred bottomhole pattern. The use of this method has lead to roller cone drill bit designs that exhibit reduce tracking over prior art bits.