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Brunner & Lay · Top hammer bits

Brunner & Lay R28 Modified Chisel Bits

Part no.

S1511M

Modified chisel bits for R28 drill strings. Diameters from 1-1/2 in (38 mm) to 2 in (51 mm).

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Dimension drawing: Brunner & Lay R28 Modified Chisel Bits Thread R28 (female). Diameter 1-1/2 in (38 mm). Ø 1-1/2 in (38 mm) R28
ThreadR28
Diameter1-1/2 in (38 mm)
FaceModified chisel
Button layoutcentre 2 × 1/4 in
Flushing holes1 × 3/16 in front, 2 × 1/4 in side
Weight1.1 lb (1.1 lb)

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