A saw tooth for a saw including a square saw tooth body to be mounted on a holder and for receiving inserts fastened to inwardly sloping seating surfaces on the cutting end of the tooth body. The inserts are provided with cutting edges. Between seating surfaces, the cutting end of the tooth body defines recesses for receiving intermediate members fastened therein. The intermediate members are provided with cutting edges, and the intermediate members abut the adjoining inserts to form a cutting surface about the periphery of the cutting end of the saw tooth and help protect the saw tooth body from damage including washout.

A saw tooth for a saw including a square saw tooth body to be mounted on a holder and for receiving inserts fastened to inwardly sloping seating surfaces on the cutting end of the tooth body. The inserts are provided with cutting edges. Between seating surfaces, the cutting end of the tooth body defines recesses for receiving intermediate members fastened therein. The intermediate members are provided with cutting edges, and the intermediate members abut the adjoining inserts to form a cutting surface about the periphery of the cutting end of the saw tooth and help protect the saw tooth body from damage including washout.

A cutting tooth system for a disk of a disk-saw felling head. The disk defines a receiving portion and an axis of rotation. The cutting tooth system comprises at least one cutting tooth. The cutting tooth comprises a first portion defining a first protrusion and a second protrusion. The first portion is configured to be received in the receiving portion for rotation with the disk. A second portion defines a chip removal path and a cutting edge adjacent the chip removal path. A first retaining device is configured to couple to the disk to secure the first protrusion in the receiving portion. A second retaining device is configured to couple to the disk to secure the second protrusion in the receiving portion.

A cutting tooth system for a disk of a disk-saw felling head. The disk defines a receiving portion and an axis of rotation. The cutting tooth system comprises at least one cutting tooth. The cutting tooth comprises a first portion defining a first protrusion and a second protrusion. The first portion is configured to be received in the receiving portion for rotation with the disk. A second portion defines a chip removal path and a cutting edge adjacent the chip removal path. A first retaining device is configured to couple to the disk to secure the first protrusion in the receiving portion. A second retaining device is configured to couple to the disk to secure the second protrusion in the receiving portion.

A cutting tooth includes a tooth body having a mounting side, a front face spaced from the mounting side, and a plurality of lateral faces extending between the mounting side and the front face, the tooth body having an interior hardness, and a coating applied to at least one of the lateral faces to form a lateral hardface, the lateral hardface having a hardface hardness greater than the interior hardness, an edge of the lateral hardface closest to the front face and a portion of the front face adjacent the edge of the lateral hardface defining a cutting edge region of the tooth.

The invention relates to a saw blade 1 comprising a circular disc 2 having curved recesses 3 around its circumference. Each recess has a notch 5; a series of teeth 4 fitted within the recesses. Each tooth has a cutting bit 7 and a shank 6 separate from one another until installed. Each cutting bit 7 has a base with an aperture 14 therein; and a plurality of fixing members 13, The arrangement is characterised in that for each tooth 4, one of the fixing members 13 is engaged with the aperture 14 and extends from the cutting bit 7 to also engage a corresponding one of the notches 5 to restrain the tooth 4 from becoming dislodged from the recess 3 it is in.

A replaceable tooth for a circular saw having a base and angled cutting surfaces defining nadirs of intersection between them and inserts covering the facets of the cutting surfaces. Plugs of a hardened material are provided immediately below each nadir of intersection to prevent erosion of the base of the tooth below the intersections of the inserts.

A replaceable tooth for a circular saw having a base and angled cutting surfaces defining nadirs of intersection between them and inserts covering the facets of the cutting surfaces. Plugs of a hardened material are provided immediately below each nadir of intersection to prevent erosion of the base of the tooth below the intersections of the inserts.

A saw tooth for a saw including a square saw tooth body to be mounted on a holder and for receiving inserts fastened to inwardly sloping seating surfaces on the cutting end of the tooth body. The inserts are provided with cutting edges. Between seating surfaces, the cutting end of the tooth body defines recesses for receiving intermediate members fastened therein. The intermediate members are provided with cutting edges, and the intermediate members abut the adjoining inserts to form a cutting surface about the periphery of the cutting end of the saw tooth and help protect the saw tooth body from damage including washout.

A saw tooth for a saw including a square saw tooth body to be mounted on a holder and for receiving inserts fastened to inwardly sloping seating surfaces on the cutting end of the tooth body. The inserts are provided with cutting edges. Between seating surfaces, the cutting end of the tooth body defines recesses for receiving intermediate members fastened therein. The intermediate members are provided with cutting edges, and the intermediate members abut the adjoining inserts to form a cutting surface about the periphery of the cutting end of the saw tooth and help protect the saw tooth body from damage including washout.