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What should be paid attention to when using down-the-hole drills

2021-07-29

Using the down-the-hole (DTH) drill bit correctly, to ensure the rock drilling speed and service life of the bit, you should pay attention to the following points: 1. According to the rock condition (hardness, abrasiveness) and drilling rig type (high wind pressure, low wind pressure), choose the ...
DTH casing advancement systems

2016-10-18

Our Roschen Tubex system When simultaneously drilling and casing through loose overburden materials our Tubex system will give you a great result. Tubex is a cost efficient system leaving less material behind in the hole. Roschen® casing advancement systems are designed to work in unison, with other ...
Shank Adapters Catalogues

2016-10-18

Shank Adapter Catalogues /photo/explorationcoredrilling/editor/20151214120526_48694.pdf
API casing Sizes

2017-11-03

Dimensions Bit Size and Diameter Clearance Size OD Weight Per Foot Nominal Wall Nominal ID Coupling OD Drift Nominal Bit Size Clearance From Drift Dia. Inches Pounds Inches Inches Decimal Inches 10 3/4 32.75 0.276 10.192 11.75 10.036 9 7/8 9.875 0.161 40.5 0.35 10.05 11.75 9.894 9 7/8 9.875 0.019 45...
API Casing Dimensions & Bit Clearance Data

2017-11-03

API Casing Dimensions & Bit Clearance Data Dimensions Bit Size and Diameter Clearance Size OD Weight Per Foot Nominal Wall Nominal ID Coupling OD Drift Nominal Bit Size Clearance From Drift Dia. Inches Pounds Inches Inches Decimal Inches 4 1/2 9.5 0.205 4.09 5 3.965 3 7/8 3.875 0.09 11.6 0.25 4 5 3...

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What should be paid attention to when using down-the-hole drills

DTH casing advancement systems

Shank Adapters Catalogues

API casing Sizes

API Casing Dimensions & Bit Clearance Data

Down The Hole Drilling

Drill Rod

Tricone Drill Bit

Diamond Core Drill Bits

Down The Hole Hammer