Dual tube exploratory drilling rig california

- First-ever drill rig built on 30-inch wide tracks - Utilizes both hollow-stem and solid-stem augers - Performs both SPT and Modified California sampling - Able to drill down to depths exceeding 20 feet - Our team includes a highly-skilled rock star operator [pdf]

Manual rock drill has slow speed

Turn the throttle lever gradually and drill at a slow speed until the hole is collared. The drill should be kept at right angles to the work until the hole is collared, then repositioned for angle drilling. Always apply sufficient down pressure to keep the tool from bouncing. [pdf]