Semi dome Xtrac bits for XT51 drill strings. A semi dome penetrates fast in soft, low-silica rock. Xtrac bodies are tapered retrac bodies with flat spline grooves. Diameters from 3-1/2 in (89 mm) to 5 in (127 mm). Conical carbide.
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Thread
XT51
Diameter
3-1/2 in (89 mm)
Face
Semi dome, Xtrac
Carbide
Conical
Button layout
gauge 8 × 1/2 in, front 4 × 1/2 in
OEM catalogue number
A16090
Shipping estimate
Used with
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