drill rods manufacturers in china

WB Carbide is drill rods manufacturers in china .

Our standard size is Dia 1mm~30mm ,Length 320 or 330 but also according your required to cut Length .

below is size for drills could be polished size or blanks size 

1x38mm   1.5x38mm  2.0x38mm  3.0x38mm  3.5x38mm   4x38mm  5x38mm  6x38mm  7x38mm 8x38mm 

1x80mm    1.5x80mm  2.0x80mm  3.0x80mm  3.5x80mm  4x80mm  5x80mm   6x80mm   7x80mm  8x80mm

3x75mm    3.5x75mm   4x75mm    5x75mm    6x75mm   8x75mm   9x75mm   10x75mm 12x75mm 14x75mm

15x75mm  16x75mm   17x75mm  18mmx75mm  19x75mm 20x75mm 21x75mm 22x75mm 23mmx75 24x75mm

4x100mm   5x100mm  6x100mm  7x100mm  8x100mm  9x100mm  10x100mm  11x100mm  12x100mm  13x100mm 

14x100mm  15x100mm  16x100mm  17x100mm  18x100mm  19x100mm  20x100mm  21x100mm  22x100mm  23x100mm 24x100mm

4x150mm  5x150mm 6x150mm 7x150mm 8x150mm 9x150mm 10x150mm 11x150mm 12x150mm 13x150mm 14x150mm 15x150mm

16x150mm 17x150mm 18x150mm  19x150mm  20x150mm 21x150mm 22x150mm 23x150mm 24x150mm 25x150mm  26x150mm 

Grade for choose 

Cobalt  Density
WB70 0.7 10 14.45 91.8 3800 10.5
WB60 0.6 10 14.45 92.2 4000 10.7
WB40 0.4 12 14.12 92.5 4200 10.2
WB50 0.5 8 14.5 93.2 4000 9.6
WB10 0.4 6 14.8 94.1 3800 8.7
WB20 0.2 9 14.45 94 4200 9.2
WB30 0.7 15 13.98 89 4500 13.8
WB70 Sub-fine grain size ,processing by medium speed ,good general performance ,drill bits and end mills are recommended ,suitable for cutting ordinary alloy steel ,aluminum alloy heat resistance alloy ,cast iron ,etc.
WB60 Ultra-fine grain size ,excellent heat resistance ,suitable for high -speed milling and drilling ,suitable to process alloy steel ,heat-resistance alloy ,cast iron ,non-ferrous metals ,stainless steel and other materials
WB40 Ultra-fine grain size ,with good wear resistance and toughness ,especially suitable for finishing and processing alloy steel ,aluminum alloy,Titanium alloy etc ,suitable for making end mills and reamer
WB50 Suitable for prcessing hardned hard steel ,aluminum alloy ,glass fiber reinforced materials ,high wear resistant material stainless steel ,composit graphite ,PCB ,plastic
WB10 Ultra-fine grain size,with good wear reistant ,higher wear resistant end mill and engraving tool are recommended ,suitable for processing aluminum-magnesium alloy .composite sheet ,PCB ,plastic,glass fiber reinforced plastic etc.
WB20 Selected high-quality 0.2um ultra -fine tungsten carbide powder ,with high wear resistance and toughness ,suitable for finishing of hardened steel ,high-precision and high-mirror processing of graphite ,plastic ,glass fiber reinforced materials,stainless steel and aluminum alloy ,suitable for making 0.25mm end mill ,drills boring tool.
WB30 Sub-fine grain size ,with good wear resistant and toughness ,suitbable for making punching of mould ,anti-vibration boring bar etc.