Abstract: A boring bit includes a shank and a drilling head coupled to the shank. The drilling head includes a center tip and a pair of flanges. Each flange includes a cylindrical sidewall section, a cutting edge extending radially outward from the center tip to the sidewall section, a bottom face extending radially outward from the shank to the sidewall section, a rake face extending axially from the cutting edge to the bottom face, a rearward edge extending radially outward from the shank to the sidewall section and defining a boundary of the bottom face opposite the rake face, a spur extending axially from the sidewall section, and a chip channel defined at least in part by the sidewall section. The sidewall section of each flange extends through a sweep angle from the cutting edge to the rearward edge. The sweep angle is between about 30 degrees and about 60 degrees.

Abstract: A drill bit includes a shaft having a first end portion connectable to a power tool and a second end portion substantially opposite the first end portion. The shaft defines a longitudinal axis extending through the first and second end portions. The drill bit also includes a first generally planar blade coupled to the second end portion of the shaft and defining a first cutting edge extending generally perpendicularly from the axis, a second generally planar blade coupled to the second end portion of the shaft and defining a second cutting edge extending generally perpendicularly from the axis, a third blade coupled to the second end portion of the shaft and defining a third cutting edge extending generally perpendicularly from the axis, and a pilot tip extending from at least one of the first, second, and third cutting edges generally along the longitudinal axis.

Abstract: A fastener guide includes a shaft having a first end for transferring torque to a fastener and a second end for receiving a torque from an external source, the shaft including a threaded portion and an axial groove extending axially along the threaded portion. The fastener guide also includes a sleeve slidable axially with respect to the shaft, the sleeve having a first end proximate the first end of the shaft and a second end proximate the second end of the shaft, and a depth-adjustment ring having a threaded inner surface for engaging the threaded portion of the sleeve and a detent ring for selectively engaging the axial groove.

Abstract: A saw blade is provided for cutting a work piece. The saw blade comprises a body including a first end and a second end, the body defining a longitudinal axis of the saw blade. The body includes a cutting edge formed along a portion of the body and extending to at least the first end of the body. A connecting portion extends from the second end of the body to a free end of the saw blade and defines a longitudinal axis co-aligned with the longitudinal axis. The connecting portion includes a shank having a first edge and a second edge substantially parallel to the first edge. The shank is positioned between the second end of the body and the free end of the saw blade and defines a first lateral width of the connecting portion. A first holding tab extends laterally outwardly from the first edge of the shank, and a second holding tab extends laterally outwardly from the second edge of the shank.

Abstract: A bit exchange system for use with a tool includes a driver bit engageable with the tool and defining an axis. Each of a plurality of adapters has a first end configured to engage the driver bit along the axis and a second end configured to retain a tool bit. Each of a plurality of tool bits is coupled to the second end of one of the plurality of adapters. A holder unit has a plurality of receptacles for receiving the plurality of adapters. Each of the plurality of adapters is insertable into and removable from the respective receptacle with a motion substantially perpendicular to the axis while engaged by the driver bit.