A bone cutter, comprising: a) a proximal barrel portion configured for detachable connection to a source of rotary motion; b) a cutting head body extending along a longitudinal axis (A-A) from a proximal end of the proximal barrel portion to a distal end surface, wherein the distal end surface is of a convex geometry outwardly extending in a distal direction; and c) at least two spaced apart cutting blades supported by the cutting head body, each of the cutting blades comprising opposing leading and trailing sidewall surfaces (142, 144), wherein a blade relief surface resides between the leading and the trailing sidewall surfaces (142, 144), and wherein a tissue cutting edge resides at an intersection of the leading sidewall surface and the blade relief surface along at least a portion of each of the at least two cutting blades, wherein each cutting blade comprises a nose blade segment that extends from the distal end surface towards a primary blade segment, the primary blade segment extending to a proximal blade segment, and wherein the proximal blade segment extends in a proximal direction towards the proximal barrel portion, and wherein, along any one cross-section taken from a distal end of the primary blade segment to a proximal end of the primary blade segment, the one cross-section being aligned normal to the longitudinal axis (A-A) and intersecting an outermost endpoint of the leading sidewall surface: i) a first imaginary line (H-H) is coincident with the blade relief surface; ii) a second imaginary line (G-G) intersects the longitudinal axis (A-A) and the outermost endpoint of the leading sidewall surface; iii) a third imaginary line (F-F) is normal to the second imaginary line (G-G) and intersects the outermost endpoint of the leading sidewall surface; and iv) characterized in that a blade relief angle (α) is defined between the first and third imaginary lines (H-H, F-F) and ranges from about 30° to about 35°. a) a proximal barrel portion configured for detachable connection to a source of rotary motion; b) a cutting head body extending along a longitudinal axis (A-A) from a proximal end of the proximal barrel portion to a distal end surface, wherein the distal end surface is of a convex geometry outwardly extending in a distal direction; and c) at least two spaced apart cutting blades supported by the cutting head body, each of the cutting blades comprising opposing leading and trailing sidewall surfaces (142, 144), wherein a blade relief surface resides between the leading and the trailing sidewall surfaces (142, 144), and wherein a tissue cutting edge resides at an intersection of the leading sidewall surface and the blade relief surface along at least a portion of each of the at least two cutting blades, wherein each cutting blade comprises a nose blade segment that extends from the distal end surface towards a primary blade segment, the primary blade segment extending to a proximal blade segment, and wherein the proximal blade segment extends in a proximal direction towards the proximal barrel portion, and wherein, along any one cross-section taken from a distal end of the primary blade segment to a proximal end of the primary blade segment, the one cross-section being aligned normal to the longitudinal axis (A-A) and intersecting an outermost endpoint of the leading sidewall surface: i) a first imaginary line (H-H) is coincident with the blade relief surface; ii) a second imaginary line (G-G) intersects the longitudinal axis (A-A) and the outermost endpoint of the leading sidewall surface; iii) a third imaginary line (F-F) is normal to the second imaginary line (G-G) and intersects the outermost endpoint of the leading sidewall surface; and iv) characterized in that a blade relief angle (α) is defined between the first and third imaginary lines (H-H, F-F) and ranges from about 30° to about 35°. i) a first imaginary line (H-H) is coincident with the blade relief surface; ii) a second imaginary line (G-G) intersects the longitudinal axis (A-A) and the outermost endpoint of the leading sidewall surface; iii) a third imaginary line (F-F) is normal to the second imaginary line (G-G) and intersects the outermost endpoint of the leading sidewall surface; and iv) characterized in that a blade relief angle (α) is defined between the first and third imaginary lines (H-H, F-F) and ranges from about 30° to about 35°.