Product

Bulldog Hammers

  • Metro driltech offers a complete line of "BULLDOG" Down Hole Hammers ranging in hole sizes of 89 mm (3-1/2") through to 1200 mm (47-1/2") by using the right combination of machining excellence, and the highest quality raw materials. The bulldog hammer can virtually guarantee longer service life. Bulldog has proven superior performance in availability, quality and reliability. When you combine this king of excellence with Metro Driltech Bulldog hammer bits you have a winning combination!

Bulldog DTH Button Bits

  • Metro driltech manufactures each bit using the highest quality raw materials available in the industry today. Each individual bit is tested before it leaves our manufacturing facility to assure every machined dimension is accordance with its design. All heat treating testing for hardness is thoroughly scrutinized to assure our customers of quality products for their drilling operations.

Missile Hammers & Bits

  • The Metro Driltech "Missile" DTH hammers incorporate the latest, unique works by valveless pneumatic pessure. This new technology strongly increases airflow efficiency within the Missile hammer and ensures that the high pressure air paths are optimized to deliver the greatest amount of energy to the piston.

Hole Openers

  • Metro Driltech Hole Openers provide hole enlargement for hammer drilling. Custom pilot and head diameters are available in most all shank designs like Ingersoll-Rand, Altas Copco, Sandvik, Numa and Bulroc, etc. The pilot hole was drilled followed by the first stage to enlarge the hole. The second and final stage then further enlarged the hole. Different stages can be built per drillers specifications to maximize cutting removal and rig capabilities. Metro Driltech offers a full line of standard and custom Hole Openers in all sizes from 152 mm (6") through 850 mm (33-1/2") in diameter for all industry hammer shanks. Wear pads, back reamer carbide buttons, and or carbide buttons on the pilot can be added for an additional fee. All Hole Openers are manufactured from the highest quality aircraft alloy steel. We at Metro Driltech are proud of the quality and workmanship of our custom built Hole Openers.

"MARATHON" Cluster Drill

  • The CD hammer is used when the drillers use it at downtown construction site to avoid from civil complaint about noise and vibration. Metro Driltech offers a hard rock drilling system capable of drilling hole size ranging from 381 mm (15") through to 2000 mm (78-7/8") in diameter by combining multiple down-hole drills into a single canister. These dills are custom engineered and manufactured to meet each customer's unique hole size requirements. The drills are short, light weight and compact, featuring exclusive technology for quick-release bits and low noise and vibration when drillers use them at downtown job sites. Metro Driltech Cluster Drill is designed for largest building, roadway and mining contractors to quickly drill holes to the exact size required by their specifications.

"MD Jaws" Concentric Overburden System

  • Metro Driltech "MD Jaws" concentric overburden system is an integral part of an under reaming (overburden) system used in applications where the drilled hole may collapse when drilling with conventional methods. "MD Jaws" Bits allow for the advancement of a casing system through unconsolidated formations, using an air DTH hammer, and the effortless withdrawal of the bit after the casing has been set. Applications are typically variable formations with soft layers overlying or intersoersed with hard materials such as boulders or cobbles. "MD Jaws" is designed to drill in all such formations by carrying the casing through the variable layes to target depth, after which the complete tool is retracted, leaving the casing in the hole permanently, or until the next operation is carried out.