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Brunner & Lay R25 button bit, crown, 6 gauge + 2 centre buttons, 1 front flushing hole (render)
  • Brunner & Lay R25 button bit, crown, 6 gauge + 2 centre buttons, 1 front flushing hole (render)
  • Brunner & Lay R25 button bit, crown, 6 gauge + 2 centre buttons, 1 front flushing hole (render)

3D render from OEM drawings, not a photograph.
Brunner & Lay R25 Crown Bits

Brunner & Lay · Top hammer bits

Brunner & Lay R25 Crown Bits

Part no.
S1510C6

Crown bits for R25 drill strings. A crown face penetrates fast in softer rock. Diameters from 1-1/2 in (38 mm) to 2 in (51 mm). Hemispherical carbide.
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Dimension drawing: Brunner & Lay R25 Crown Bits Thread R25 (female). Diameter 1-1/2 in (38 mm). Ø 1-1/2 in (38 mm) R25
ThreadR25
Diameter1-1/2 in (38 mm)
FaceCrown
CarbideHemispherical
Button layoutgauge 6 × 5/16 in, centre 2 × 1/4 in
Flushing holes1 × 3/16 in front, 2 × 3/16 in side
Weight1.1 lb (1.1 lb)

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