Product Description
This 32–50 mm cross carbide drag bit is positioned for short mining and construction holes in soft rock or uncemented ground where a simple fixed cutting profile is appropriate. The available model range converts to 1.26–1.97 in. Its cross geometry gives four contact directions and a central point that helps start the hole. Review related uses in the mining exploration archive and compare the permitted ground class in the soft formation archive.
The body is alloy steel with carbide cross edges identified by the media filename. Because the project mapping treats Cross designs as drag bits, this product uses a fixed scraping and chipping action rather than cones, bearings, or PDC cutters. The uncomplicated head can be inspected quickly for edge rounding, chipped carbide, body wash, and gauge loss. The source filename does not establish a rod thread, so the connection must be confirmed against the actual tool before dispatch or installation. Confirm that all four arms reach the same gauge; one shortened corner can produce an irregular hole even while the center continues advancing.
Operate a drag design with low WOB and 100–250 RPM. Increase feed only while torque and penetration remain stable, and restore cleaning if cuttings begin to pack around the cross. The design is limited to soft or weak medium material and is not recommended for granite, basalt, quartzite, or abrasive rock with quartz above 20%. General geological terminology can be checked through the U.S. Geological Survey. A hard-rock interval calls for a carbide button system rather than more force on this fixed edge.
