Auger bit with replaceable cutting bit

摘要

An auger bit includes an elongated shaft, a cutting bit, a feed screw, and a locking fastener. The shaft includes a flute extending in a helical manner with respect to a longitudinal axis along at least a portion of the shaft. The shaft further includes a first slot and a second slot. The first slot extends parallel to the longitudinal axis proximate the first end and is aligned with the axis. The cutting bit is removably received in the second slot and includes a first edge. The feed screw includes a shank and a threaded portion. The shank is removably received in the first slot. The feed screw engages the cutting bit to secure the cutting bit relative to the shaft. The locking fastener is coupled to the shaft and engages the shank of the feed screw to secure the feed screw relative to the shaft.

主权项

1. An auger bit comprising:
an elongated shaft having a first end, a second end, and a longitudinal axis extending between the first end and the second end, the shaft including a flute extending in a helical manner with respect to the longitudinal axis along at least a portion of the shaft, the shaft further including a first slot and a second slot, the first slot extending parallel to the longitudinal axis proximate the first end and aligned with the axis, the second slot extending substantially perpendicular to the longitudinal axis proximate the first end; a cutting bit removably received in the second slot, the cutting bit including a first edge; a feed screw including a shank and a threaded portion, the shank being removably received in the first slot, the feed screw engaging the cutting bit to secure the cutting bit relative to the shaft; and a locking fastener coupled to the shaft, the locking fastener engaging the shank of the feed screw to secure the feed screw relative to the shaft, wherein the second slot extends diametrically across a width of the shaft, and wherein the cutting bit is inserted into the slot in a direction that is parallel to the longitudinal axis of the shaft, the cutting bit including a portion on a first side of the longitudinal axis and a second portion on an opposite side of the longitudinal axis.