What kind of job is it to operate a down-the-hole drill

DTH is short for “down-the-hole”. Since the DTH method was originally developed to drill large-diameter holes downwards in surface-drilling applications, its name originated from the fact that the percussion mechanism followed the bit down into the hole. Applications were later found for the DTH method underground, where the direction of drilling is generally upwards instead of downwards. [pdf]

Screw air compressor secondary maintenance form

Use Our Compressor Maintenance Checklist – Download our free PDF to keep track of routine tasks. Track Your Data: Use our printable Rotary Screw Maintenance Schedule to record service dates, hours, and temperature readings. [pdf]