Bits (Drilling and boring)

Evaluation of high-pressure front-mounted water jets for frictional-ignition suppression

by C.D. Taylor and A.L. Furno.

Rock drill mountings

Ingersoll-Rand Company

Cutting parameters affecting the ignition potential of conical bits

by Bruce D. Hanson.

Paramètres et contrôle du forage

par A. Choquin.

From blacksmith to blackgoldsmith: the story of Smith Tool

by B. Carolyn Schlee.

Investigation of optimum thrust, cutting speed, and water pressure for tungsten carbide and polycrystalline diamond compact roof- bolt drill bits

by Laxman S. Sundae, Thomas W. Smelser, and Wayne L. Howie.

Rig hydraulic

H. Rabia.

Matematicheskie metody prognozirovanii͡a︡ ėffektivnosti burovykh sharoshechnykh dolot: neftegazovai͡a︡ promyshlennostʹ : obzornai͡a︡ informat͡s︡ii͡a︡

A.G. Kolugarʹ.

The Gladwin improved bitt and auger ...

New Era Manufacturing Company.

Effect of symmetric bit wear and attack angle on airborne respirable dust and energy consumption

by Bruce D. Hanson and Wallace W. Roepke.