US PRO Tools 7pc 6mm Carbide Burr Set Burrs Tungsten Steel Hole enlarger 7072

A seven piece set of double cut tungsten carbide burrs in a range of shapes. Extremely hard wearing and suitable for work with metals, plastic and wood. Our Tungsten Carbide Burr's are made from pure raw material which means they can be hardened to HRA 89-91. The sintering process is performed in a pressure furnace to keep volatilisation to a minimum and ensure the highest hardness is achieved. Manufacturers that use scrap material and a vacuum sintering process cannot reach the same level of hardness. A silver braze is used rather than a copper braze favoured by other manufacturers as it can be applied at a lower temperature that will not affect the concentricity and hardness of the burr and shank. Shank size: 6mm diameter Shank length: 45mm Material: YG8 Tungsten Carbide Hardness: HRA 89-91 Contents (Sizes are cut diameter x cut length): Type L - Taper radius end 10 x 25mm Type F - Tree with radius End 12 x 25mm Type E - Oval shape 10 x 16mm Type D - Ball shape 10 x 8mm Type C - Cylinder (ball nose) 10 x 20mm Type B - Cylinder end cut 12 x 25mm Type B - Cylinder end cut 10 x 20mm