A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body.

A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body.

A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body.

A hole-saw comprises a cylindrical body, a plate, a mandrel, and a clamping member. A cutting edge is formed at an open end of the body and is disposed about the body's rotational axis. The plate is disposed at an opposite end of the body, is rotationally coupled to the body, and is oriented perpendicular to the body's rotational axis. In one embodiment the plate has lateral slots formed through the plate and lateral grooves formed in the plate's distal surface in an orientation transverse to the slots. The mandrel's proximal section forms an arbor shaft, and its distal section includes lateral bosses sized to insert through the plate's slots and rest in the plate's grooves. The clamping member has a body that is movable along the mandrel's longitudinal axis to engage the plate's proximal surface and clamp the plate between the clamping member and the bosses resting in the plate's grooves. Other embodiments include a cylindrical body with a cutting edge at both ends. Either cutting edge can have an inner or an outer tooth to easily remove the plug. The pilot drill bit can have a burr to prevent jamming.

A hole-saw comprises a cylindrical body, a plate, a mandrel, and a clamping member. A cutting edge is formed at an open end of the body and is disposed about the body's rotational axis. The plate is disposed at an opposite end of the body, is rotationally coupled to the body, and is oriented perpendicular to the body's rotational axis. The plate has lateral slots formed through the plate and lateral grooves formed in the plate's distal surface in an orientation transverse to the slots. The mandrel's proximal section forms an arbor shaft, and its distal section includes lateral bosses sized to insert through the plate's slots and rest in the plate's grooves. The clamping member has a body that is movable along the mandrel's longitudinal axis to engage the plate's proximal surface and clamp the plate between the clamping member and the bosses resting in the plate's grooves.