Patent ID: 7930958

Claim:
A blade housing, comprising: an outer housing having a distal end; an inner housing coupled to said outer housing, wherein the inner housing is adjustable in a longitudinal direction relative the outer housing to a discrete set point of a plurality of discrete set points, wherein said inner housing includes a plurality of detents to provide said plurality of discrete set points, said inner housing further including a biased bearing coupled to said outer housing, whereby the bearing can be selectively engaged with one of said plurality of detents by rotating said inner housing relative to said outer housing; a blade coupled to said inner housing, wherein the blade includes an axial length having a sharpened distal end; and a plunger extending through and biased toward a proximal end of said inner housing, wherein actuation of said plunger toward a distal end of said inner housing causes said blade to protrude from said distal end of said outer housing; a factory adjustment member threadably engaged with said inner housing for setting a position of said plunger relative to said inner housing to set a distal end of said blade in a coplanar arrangement with said distal end of said outer blade housing.