E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/55 (2006.01)
Patent
CA 2588504
Disclosed within is a drill bit with a plural set of blades having redundant cutter elements and single sets of blades having unique cutter element arrangements. The redundant cutter elements have equivalent longitudinal and axial spacing as corresponding cutter elements. The distance from a longitudinal axis of the bit to a redundant cutter element is equivalent to the distance from the longitudinal axis to the corresponding cutter element.
Deeth Williams Wall Llp
Smith International Inc.
LandOfFree
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