Abstract: A rotary cutting tool (10) comprises a shank (12) formed of a first material of a first hardness. The shank (12) has a first end (12a), and a plurality of elements (14) are provided at the first end (12a) of the shank (12). The elements (14) are formed of a second material of a second hardness greater than that of the first hardness. The elements (14) provide a platform to be able to create a plurality of cutting edges or teeth (18, 20a). A method of forming such a rotary cutting tool is also provided.

Abstract: A drill reamer (20) comprises an elongate body (21) disposed about a longitudinal axis. The elongate body comprises flutes (22a-22d) having separate hard cutting sections (27a, 28?a, 28?a, 28?b, 28?b) and a soft cutting section (24a, 24b). The soft cutting section is formed of a material such as carbide having a hardness that is less than that of the hard cutting sections, which may be formed of polycrystalline diamond. At least one first hard cutting section (27a) is axially displaced relative to at least one second hard cutting section (28?a, 28?a). The reamer has a tip cutting edge (23a, 23c) and tapered cutting edge portions (24a-24d) disposed at an acute angle relative to the longitudinal axis.

Abstract: A rotary cutting tool (10) comprises a shank (12) formed of a first material of a first hardness. The shank (12) has a first end (12a), and a plurality of elements (14) are provided at the first end (12a) of the shank (12). The elements (14) are formed of a second material of a second hardness greater than that of the first hardness. The elements (14) provide a platform to be able to create a plurality of cutting edges or teeth (18, 20a). A method of forming such a rotary cutting tool is also provided.

Abstract: The present invention relates to a composition for treating wood comprising a wood preserving compound and a carrier, wherein the carrier is an emulsion comprising a hydrophobic phase, a hydrophilic phase and a surfactant system. In particular, the surfactant system comprises a non-ionic polyethoxylated alkyl amine and an anionic C10-C16 alkylbenzene sulfonate. Methods of using the composition to treat wood, especially timber, are also described.

Abstract: A drill reamer (20) comprises an elongate body (21) disposed about a longitudinal axis. The elongate body comprises flutes (22a-22d) having separate hard cutting sections (27a, 28?a, 28?a, 28?b, 28?b) and a soft cutting section (24a, 24b). The soft cutting section is formed of a material such as carbide having a hardness that is less than that of the hard cutting sections, which may be formed of polycrystalline diamond. At least one first hard cutting section (27a) is axially displaced relative to at least one second hard cutting section (28?a, 28?a). The reamer has a tip cutting edge (23a, 23c) and tapered cutting edge portions (24a-24d) disposed at an acute angle relative to the longitudinal axis.

Abstract: The invention relates to a composition for treating wood comprising at least one wood preserving compound and a carrier, wherein said carrier is an emulsion or microemulsion having a water to oil ratio of greater than 30 up to 92.5 water to 7.5 to less than 70 oil, wherein the oil has a flash point above 61° C. The invention also relates to methods of treating wood with the composition.

Abstract: The invention relates to a composition for treating wood comprising at least one wood preserving compound and a carrier, wherein said carrier is an emulsion or microemulsion having a water to oil ratio of greater than 30 up to 92.5 water to 7.5 to less than 70 oil, wherein the oil has a flash point above 61° C. The invention also relates to methods of treating wood with the composition.

Abstract: A material and method for treating timber. The material comprises a preservative and a carrier. The carrier is selected such that it remains mobile within the wood and provides for migration of the preservative within the treated wood. By providing a carrier which is mobile within the wood, the timber has a ‘self healing’ effect wherein the carrier/preservative migrates to any freshly cut or exposed surface of the wood to thereby redistribute and treat such a surface within the preservative and hence maintain integrity of a treatment envelope surrounding the wood.

Abstract: A material and method for treating timber. The material comprises a preservative and a carrier. The carrier is selected such that it remains mobile within the wood and provides for migration of the preservative within the treated wood. By providing a carrier which is mobile within the wood, the timber has a ‘self healing’ effect wherein the carrier/preservative migrates to any freshly cut or exposed surface of the wood to thereby redistribute and treat such a surface within the preservative and hence maintain integrity of a treatment envelope surrounding the wood.