Rock drill bits factory Bloom: R32 retrac cross bit, diameter 89 mm suitable for drifting and tunneling drilling application, easier to sharpen than X-bits, inset angles are equal on all four sides, Bits 89mm and less are easier to sharpen than button bits of the same size. In certain rock conditions, cross bits tend to produce a spiraled five sided hole (especially in diameters larger than 89 mm).
Contact: Chris Li
Phone: 13867850196
E-mail: sales@bloommachinery.com
Whatsapp:+86 13867850196
Add: Hehua Bridge, Yunlong Town, Yinzhou Distric, Ningbo City, ZheJiang Province
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