The present disclosure concerns a saw tooth holder for a cutting disk of a rotary cutting machine. The saw tooth holder comprises a holder body having a tooth-receiving surface abuttable against a rear surface of a saw tooth of a tooth assembly and a trailing surface, opposed to the tooth-receiving surface, and defining a trailing oblique angle with respect to the tooth-receiving surface. The holder body has a fastener-receiving aperture extending therethrough between the tooth-receiving surface and the trailing surface and being accessible from the tooth-receiving surface and the trailing surface. The present disclosure also concerns a cutting disk comprising such a saw tooth holder, a saw tooth holder in combination with a tooth assembly, and a rotary cutting machine comprising such a cutting disk.

A land preparation tool includes a tool body having a cutting surface, a mounting surface, an opening, and a channel. The cutting surface has a blade positioned at a distal end thereof. The mounting surface has a non-planar profile and is disposed on the tool body opposite the cutting surface. The opening is disposed on the mounting surface and the channel extends from the opening at least partially into the tool body. Other embodiments are described and claimed.

A land preparation tool includes a tool body having a cutting surface, a mounting surface, an opening, and a channel. The cutting surface has a blade positioned at a distal end thereof. The mounting surface has a non-planar profile and is disposed on the tool body opposite the cutting surface. The opening is disposed on the mounting surface and the channel extends from the opening at least partially into the tool body. Other embodiments are described and claimed.

A land preparation tool includes a tool body having a longitudinal axis; a cutting surface having a distal end and a blade positioned at the distal end; a mounting surface disposed on the tool body opposite the cutting surface, the mounting surface having an apex extending along about half of the mounting surface parallel to the longitudinal axis, a first mounting surface extending from the apex, a second mounting surface extending from the apex, and an opening disposed on the mounting surface; and a channel extending from the opening only partially into the tool body

A machine-driven saw blade comprising (1) a blade body having a blade body edge including a plurality of primary saw teeth for cutting during blade movement in a first direction, the primary teeth spaced at a primary tooth pitch and each having a primary tooth tip and primary-tooth leading and trailing edges and (2) at least one secondary saw tooth on the trailing edge of a subset of primary saw teeth, the at least one secondary saw tooth having a secondary tooth tip and a secondary-tooth leading edge configured for cutting during blade movement in a second direction opposite the first direction.

A reciprocating saw blade that includes an elongated blade body defining an inner end and a distal end, a cutting edge located on one side of the blade body and extending between the inner and distal ends thereof and a tang located at the inner end of the blade body. The tang projects from the blade body at an acute angle of at least about 3 relative to a line tangent to an inner end of the cutting edge. The cutting edge includes a portion defining a substantially curved contour and optionally can include at least one further portion defining a non-curved contour.

A band saw blade may include a cutting edge defined by a number of teeth. Each tooth may include a tip, a rake face, a primary clearance surface defining a primary relief angle, a secondary clearance surface defining a secondary relief angle greater than the primary relief angle, a tertiary clearance surface defining a tertiary relief angle greater than the secondary relief angle, a first curvilinear protrusion formed between the secondary clearance surface and the tertiary clearance surface, a gullet surface, and a second curvilinear protrusion formed between the rake face and the gullet surface. The teeth may be spaced at varying pitch distances such that a difference between a minimum teeth per inch (TPI) based on a maximum pitch distance and a maximum TPI based on a minimum pitch distance is equal to or greater than 1, and may define a kerf width between 0.115 inches to 0.140 inches.

A land preparation tool includes a tool body having a longitudinal axis; a cutting surface having a distal end and first and second blades positioned at the distal end; a mounting surface disposed on the tool body opposite the cutting surface, the mounting surface having an apex extending along about half of the mounting surface parallel to the longitudinal axis, a first mounting surface extending from the apex, a second mounting surface extending from the apex, and a recess disposed into the mounting surface; and a channel extending from the recess only partially into the tool body.

The device comprises a log advancing path and a set of jaws in the form of double four-bar linkage, with an adjusting mechanism to adjust the position of the jaws according to the diameter of the logs to be cut.

The device comprises a log advancing path and a set of jaws in the form of double four-bar linkage, with an adjusting mechanism to adjust the position of the jaws according to the diameter of the logs to be cut.