Self-feed bit system

A self-feed bit system, comprising:

• a shank extending along an axis and configured to be coupled to a tool holder of a power tool;
• a cutting head couplable to the shank and including a sector shaped base, a radially extending lip at a leading edge of the sector shape facing in a cutting direction, the lip including a rake face facing the cutting direction at a rake angle relative to the axis;
• a radially extending cutting blade coupled to the radially extending lip and extending axially forward from the base at a first height measured in an axial direction relative to a bottom of the base;
• and
• an at least partially threaded tip coupled to the shank and extending axially forward of the cutting blade,
• wherein the cutting head is removably couplable to the shank in a tool-free manner.

A self-feed bit system, comprising:

• a shank extending along an axis and configured to be coupled to a tool holder of a power tool;
• a cutting head couplable to the shank and including a sector shaped base, a radially extending lip at a leading edge of the sector shape facing in a cutting direction, the lip including a rake face facing the cutting direction at a rake angle relative to the axis, wherein the rake angle is at least 40°;
• a radially extending cutting blade coupled to the radially extending lip and extending axially forward from the base at a first height measured in an axial direction relative to a bottom of the base;
• and
• an at least partially threaded tip coupled to the shank and extending axially forward of the cutting blade wherein the at least partially threaded tip includes a thread having a pitch of less than or equal to 1.2 mm;
• two or more teeth positioned on a perimeter of the base trailing the cutting blade, each tooth extending axially forward from the base at a second height measured in an axial direction relative to a bottom of the base, wherein the teeth comprise carbide or cermet.