Drop centre retrac bits for T38 drill strings. A drop centre drills straighter holes in medium to hard rock. Retrac skirts help in broken ground, keep holes straighter and make the bit easier to retrieve. Diameters from 2-1/2 in (64 mm) to 4 in (102 mm). Hemispherical carbide.
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Thread
T38
Diameter
2-1/2 in (64 mm)
Face
Drop centre, retrac
Carbide
Hemispherical
Button layout
gauge 6 × 7/16 in, mid 4 × 7/16 in
Flushing holes
2 × 1/4 in front, 1 × 3/8 in side
Weight
5.1 lb (5.07 lb)
Shipping estimate
Used with
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