Product Description
The 45 mm R32 button bit is intended for hydraulic jumbos drilling development rounds, anchor holes, and other compact hard-rock patterns. Its 1.77-inch gauge and explicit R32 connection provide a clearer mechanical starting point than a diameter-only listing. Check the work through the construction drilling application archive and compare the rock with the hard formation archive. Although the source also uses “tapered,” R32 is treated as the controlling threaded connection and that wording requires drawing review.
The source identifies R32, 45 mm, a carbide button face, jumbo use, hard rock, and a “tapered drill bit” phrase. An R32 threaded alloy-steel body with fixed carbide buttons is the defensible specification. The taper wording may describe button profile or a source translation and should not be used to add a second connection. Face type, button count, skirt style, shoulder, and flushing holes are not stated. Confirm the R32 thread drawing and inspect the actual face before assigning retrac, drop-center, or other geometry.
Use 1,000–3,000 lbf/in of diameter and 25–60 RPM, beginning conservatively for collaring and jointed rock. Hard and abrasive formations fit the carbide structure; unstable ground can cause uneven seating and should be addressed by the hole plan. Record the resolved connection description in procurement and maintenance documents. Flow is blank because the source provides no rod bore or port area. The explicit limitation is ambiguous taper wording and missing face details, despite the clear R32 and 45 mm references. General drilling terminology can be checked through the IADC.
