Drag bits Step-Type Drag Bits Chevron-Type Drag Bits for Water Well Geo Exchange
Drag bits always are used in Water Well; Geo Exchange; Environmental; Mining; Exploration
Product Specifications
- Select tungsten carbide inserts 3/16" thick are standard
- Carbide inserts are individually hand soldered using nickel silver rod
- Bits fabricated are welded with high tensile strength 7018 rod
- Drag bits are welded solid at the nose for durability
- Blades originate from 4140 heat-treated tool steel forgings
- Forgings are milled to better seat the carbide inserts
- Relief is hand ground behind carbide inserts for maximum performance
- Bits can be built to the gauge tolerances required
Step-Type Drag Bits
Step-type drag bits come in a variety of wing counts, steps, and sizes to accommodate drilling in a variety of formations, from sand and clay to shale, limestone, gravel, and more.
Three-Wing and Four-Wing - Three-wing bits tend to drill faster, whereas four-wing bits are longer lasting, more durable, and drill a straighter hole.
Regular Step and Heavy Step - Regular Step bits develop smaller cuttings, whereas Heavy Step bits are more durable and are used in harder formations. Heavy Step bits have longer and wider steps and contain larger carbide for cutting. The quantity of steps is largely determined by the size of bit.
Chevron-Type Drag Bits
Chevron-type drag bits are recommended for drilling in slightly harder and more consolidated materials than step-type drag bits, such as hard shales, limestones, and unconsolidated gravels.
Bits Stock Sizes Available Stock Threads
Three-Wing and Four-Wing Chevron 3 7/8" - 26" ; 2 3/8", 2 7/8", 3 1/2", 4 1/2", 6 5/8" API regular pin
Three-Wing and Four-Wing Chevron Kelly Bit 3 7/8" - 26" MHJR, MHR, FEDP, IF
Replaceable Blade Drag Bit System
A replaceable blade drag bit system is the most cost-effective and versatile bit available.
Cost Effectiveness - The blade system allows you to replace a single blade when it is worn or damaged versus replacing the whole bit. Purchase multiple sets of blade types and sizes for much less than the cost of unitized bits. Keep a variety of blades on hand to ensure your time onsite is the most efficient.
Versatility - From 3 7/8" three-step bits to 6 1/4" four-step bits to the various sized chevron bits, this replaceable blade system offers versatility to meet your many different drilling needs
Factory:
We are a Robert Roschen family owned Global leading manufacturer of rock drilling tools, like Roller Tricone Rock Bits, Hole Opener, Single Cone Roller Bits, PDC Bits, Diamond PCD Tricone Drill Bits, DTH Drilling Tools, such as DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Germany, China(joint-venture).
We have rich experience in this field of Roller Tricone Bits, PDC Drill Bits, Oil Drilling Toosl, Rock Drilling tools, DTH hammers and bits for 60 years.
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as US, Canada, France, Spain, Italy, South Africa, South Latin Amercia, Brasil, Saudi Arabia, UAE, Iran, Malaysia, Australia, etc.
For more information please contact:
http://roschen.en.made-in-china.com
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