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DSC01820 Wireline Core Drill Bits
Information Sheet
model NQ NQ+1 NQ+2 HQ PQ NTW NTW+1 NTW+2 HTW
Outer diameter (mm) 75 76 77 95 122 75 76 77 95
Inner diameter (mm) 47.5 47.5 47.5 63.5 85 56 56 56 71
Blade height (mm) 15 15 15 15 15 15 15 15 15
Net weight(KG) 0.9 0.95 0.95 2 2.7 0.75 0.8 0.9 1.4
Tooth bottom (mm) 67.5 67.5 67.5 85.5 112 71 71 71 89
Tooth surface (mm) 66 66 66 84 109 69.5 69.5 69.5 887
Pitch (mm) 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35
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