SYNTHETIC DIAMONDS AND DIAMOND TOOLS paste powder tools wheels dies WIRE DIES Application: Wire dies are used for medium and fine drawing of metal and alloy wire with the diameter in the range from 0,05 to 5,0 mm. Mandrel and non-mandrel drawing of tube made of different materials including stainless medicine needle. Pressing out of the graphite core for pencils. All kinds of dies are made of synthetic polycrystalline diamond of marks SKM and SVA. There are two types of dies: S (soft) and H (hard), the fields of application of which you can define in the table below. Die type Ultrahard material Application Diameter of calibrating hole, less than, mm S SKM Cold drawing of metals and alloys with temporal strength up to 500 MPa (Cu, Al, their alloys etc) 0,3 – 5,0 SVA 0,1 – 1,0 H SKM Cold drawing of metals and alloys with temporal strength over 500 MPa (brass, bronze, Ni, steel, nichronium etc) 0,3 – 2,0 SVA 0,1 – 1,0 H SKM Hot drawing (W, Mo, their alloys and etc) 0,3 – 0,8 SVA 0,05 – 1,0