Mining and Exploration

T38/R38 Multi-Tooth Button Bit for Rock Mining

• SizeT38 or R38 nominal 38 mm class (about 1.50 in); hole gauge not stated
• ConnectionSeparate T38 or R38 models

90 mm N3 Low-Pressure DTH Button Bit for Mining

• Size90 mm (3.54 in); N3 impactor family
• ConnectionN3 DTH shank family

Drill Bit Selection for Mining Exploration

Hard Formation Drill Bit Selection for Granite, Basalt, and Quartzite

Abrasive Formation Drill Bit Selection Above 20 Percent Quartz

Unconsolidated Formation Drill Bit Selection for Alluvium and Gravel

Selecting Drill Bits for Hard-Rock Mining Exploration

Controlling Bit Wear in Abrasive Mining Exploration