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 drill bit configured for use with a rotary power tool including a chuck. The drill bit includes a shank including a first end and a second end, and a paddle that extends from the second end of the shank. The paddle includes a first face including a concave portion, a second face opposite the first face and the second face including a convex portion opposite the concave portion, a cutting surface, a cutting edge located at an end of the cutting surface, a relief angle defined by the cutting surface, and an angled rake face adjacent the cutting surface that defines a rake angle that is between about 5 degrees and about 45 degrees.

A drill bit configured for use with a rotary power tool including a chuck. The drill bit includes a shank including a first end and a second end, and a paddle that extends from the second end of the shank. The paddle includes a first face including a concave portion, a second face opposite the first face and the second face including a convex portion opposite the concave portion, a cutting surface, a cutting edge located at an end of the cutting surface, a relief angle defined by the cutting surface, and an angled rake face adjacent the cutting surface that defines a rake angle that is between about 5 degrees and about 45 degrees.

A tap cutting tool comprising a first end configured to engage with a chuck of a drill and a second end having one or more thread cutting surfaces spaced apart around the perimeter of the second end and each thread cutting surface extending at least partially along a length of the second end with a void space or flute positioned between each adjacent thread cutting surface. The tap cutting tool is configured to produce a threaded hole in a non-metal workpiece when rotated.

A disposable woodworking tool includes a cutter bar and a locking piece, the front end of the cutter bar installed with a cutting head, while the tail end of the cutter bar is installed with a connecting long sleeve. The tail end of the cutter bar includes a tail end installation part fixedly connected with the connecting long sleeve via a locking piece in a detachable manner. The cutter bar includes planes along the length direction extending to the position, where the cutting head is installed, on the front end of the cutter bar, and the locking piece utilizes the principle of a spring collet. In use, instant switching of the angle of the cutting head can occur through switching of planes, without a tool. Rapid replacement of the cutter bar can occur.

A disposable woodworking tool includes a cutter bar and a locking piece, the front end of the cutter bar installed with a cutting head, while the tail end of the cutter bar is installed with a connecting long sleeve. The tail end of the cutter bar includes a tail end installation part fixedly connected with the connecting long sleeve via a locking piece in a detachable manner. The cutter bar includes planes along the length direction extending to the position, where the cutting head is installed, on the front end of the cutter bar, and the locking piece utilizes the principle of a spring collet. In use, instant switching of the angle of the cutting head can occur through switching of planes, without a tool. Rapid replacement of the cutter bar can occur.

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 flat drill having a handle, and a flat blade formed in the front portion of the handle part. A front portion of the flat blade extends inwardly from the two sides, forming first and second shoulder. The two shoulders continuing to extend and taper inward and upward, forming two tapered sections respectively, a first tapered section and a second tapered section, and having a pointed top. A first groove is formed on a blade part of the first shoulder toward the inside of the flat blade part. The inner edge of the first groove is inclined downward towards outside direction of the first shoulder, forming an angle of greater than 0 degree with respect to a horizontal line of the flat drill.