Flat face bits for R38 drill strings. A flat face suits hard and abrasive rock. Diameters 2-1/2 in (64 mm) and 2-3/4 in (70 mm). Hemispherical carbide.
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Thread
R38
Diameter
2-1/2 in (64 mm)
Face
Flat face
Carbide
Hemispherical
Button layout
gauge 6 × 7/16 in, mid 4 × 3/8 in
Flushing holes
2 × 3/8 in front
Weight
3.7 lb (3.75 lb)
Shipping estimate
Used with
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