Product Description
This 32 mm seven-tooth button bit is intended for narrow mining rounds, geological probe holes, and underground excavation where a small gauge and distributed carbide face are useful. Seven contacts provide a more divided impact pattern than a four-tooth face, subject to the actual button layout. Define the work through the mining and exploration application archive and compare the interval with the hard formation archive. The bit is not a core-recovery tool and does not preserve an intact geological sample.
The source confirms a 32 mm gauge and seven-tooth carbide button construction. An alloy-steel body carries the fixed inserts, but the filename does not identify whether all seven contacts are face buttons or whether some support the gauge. Connection type, face recess, skirt length, carbide profile, and flushing-hole position are also unknown. Those details affect collaring and sample-return quality. Before using the bit for an exploration hole, confirm the rod interface and establish whether the face geometry meets the required deviation and cuttings objectives.
Use 1,000–3,000 lbf/in of diameter and 25–60 RPM. A 32 mm gauge produces a smaller total-load range than larger button bits, so calculate loading from the actual 1.26-inch diameter rather than copying a jumbo setting. Hard and abrasive formations are appropriate, but fractured ground can load the seven contacts unevenly. No flow value is stated; set flushing from the rod bore and desired cuttings transport. The limitation is that this is destructive drilling, not coring. Geological references are available from the U.S. Geological Survey.