Sales and supply of drilling equipment, drilling parts and accessories. Rock tools for above and underground drilling. International Driller's Supply.

Down The Hole Rock Drilling Tools (DTH Bits, DTH Hammers and DTH Drill Pipes)

Down the Hole Bits

Looking for Bits for your down the hole (DTH) drilling? International Driller's Supply carries the largest selection in North America. Each bit is uniquely designed to maximize penetration and increase flushing. Bits are available in a wide range of configurations and in sizes for all of your rock drilling needs. Contact International Drillers Supply today for all of your DTH bit needs.

Down the Hole Hammers

Combining advanced materials technology with skillful design focusing on performance, simplicity and endurance, our Terelion DTH (down the hole) hammers give high productivity, great reliability and low operating costs. Hammers are available industry standard shanks for greater product flexibility.

Rotary Bits

International Driller's Supply carries several types of specially designed drilling tools that offer solutions to minimize hole deviation and optimize drilling patterns, including high quality rotary bits. Achieve superior drilling results, including improved hole straightness, superior energy transmission and higher drilling efficiency.

International Driller's Supply

International Driller's Supply has been providing the drilling industry with dependable services and competitive pricing.
The capabilities of international driller's supply provides our customers with a complete drill string from the top adapter through the bottom drill bits.
Our continued efforts to meet the demands for quality and performance with ongoing technological inprovements that will assure our customers receive the highest quality product attainable in the drilling industry.

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Down-the-Hole (DTH) hammers and drill bits are vital tools used in rotary percussion drilling. They are essential for creating deep boreholes through tough rock formations in various industries. These include mining, quarrying, water well drilling, geothermal energy exploration, and construction applications like foundation drilling.

DTH drill bits are designed with a hollow center to allow pressurized air to flush out cuttings while drilling. They are typically made from high-strength steel with tungsten carbide inserts on the cutting surface. Tungsten carbide is an incredibly hard and wear-resistant material that can efficiently break through rock. The specific design of the bit face can vary depending on the application. Common designs include concave, convex, and flat faces. These variations impact how the bit breaks up the rock and can be chosen to optimize drilling speed and efficiency based on the specific rock formation.

DTH hammers work by delivering high-pressure bursts of air down the center of the drill string to the back of the drill bit. This compressed air creates a hammering effect that drives the bit into the rock, fracturing it. The spent air then carries the broken rock chips (cuttings) up the center of the drill bit and out of the hole through the hollow center of the drill string. This continuous hammering and flushing action allows for deep and efficient drilling.