7000CX Solid Carbide Burr

DRILLCO 7000CX Solid Carbide Burr — 6" Long Shank for Hard-to-Reach Material Removal

The DRILLCO 7000CX is a solid carbide burr engineered for demanding metalworking applications where standard-length tools cannot reach. Manufactured from premium-grade tungsten carbide with a brazed shank, it is available in both single cut and double cut variants to suit a range of ferrous material removal tasks. The 6-inch extended shank allows contractors and trades professionals to access confined geometries, deep cavities, and complex weld zones that would otherwise require disassembly or specialized fixturing. Optimal flute geometry delivers fast stock removal while maintaining a fine finish on the workpiece.

Technical Specifications

Available Items

Maximum Cutting Speeds

Material Compatibility by Cut Type

Chemical Composition (SDS — Cemented Carbide with Cobalt Binder)

The 7000CX distinguishes itself from standard-length carbide burrs through its 6-inch extended shank, which eliminates the need to reposition workpieces or disassemble assemblies to access deep or confined areas. The brazed shank construction ensures precise concentricity and reduced vibration compared to mechanically assembled alternatives, contributing to a finer finish and longer tool life. The choice between single cut and double cut variants gives contractors direct control over the balance between material removal rate and surface finish quality.

Key Features & Benefits

6" Long Shank for Difficult-to-Reach Areas

The extended 6-inch shank allows the burr to reach deep cavities, recessed weld joints, and complex internal geometries that standard-length burrs cannot access. This reduces setup time and eliminates the need to disassemble structures or fabrications just to perform deburring or weld removal operations.

Double Cut Tooth Design for Aggressive Material Removal

The double cut variant features a cross-cut tooth pattern that removes material faster than a single cut, making it well suited for heavy stock removal and weld cleanup on ferrous materials. Contractors working on tight production schedules benefit from the increased removal rate without sacrificing control.

Optimal Flute Geometry for Fast Removal and Fine Finish

The flute geometry is engineered to balance chip evacuation speed with surface finish quality, reducing the need for secondary finishing passes. This dual capability means fewer tool changes and less total time on the workpiece.

Solid Carbide Head for Premium Performance

The solid carbide head provides the hardness and wear resistance needed to maintain cutting performance on ferrous materials, including hardened steels up to 55–60 Rc. Carbide's superior hardness compared to high-speed steel translates directly into longer tool life in demanding metalworking environments.

Brazed Shank for Perfect Concentricity and Reduced Vibration

The brazed connection between the carbide head and the shank ensures precise alignment, minimizing runout during operation. Reduced vibration means less operator fatigue during extended use and less wear on the grinder's spindle bearings.

Single Cut Variant Available for Controlled Finishing

Where a finer surface finish is required, the single cut variant provides a smoother cutting action with less aggressive chip removal. This makes the 7000CX series adaptable across both roughing and finishing stages of a job without requiring a completely different tool family.

Common Applications

Deburring of Ferrous Materials

The 7000CX removes sharp edges and burrs left by machining, cutting, or punching operations on ferrous metals, including carbon steel, stainless steel, and cast iron.

Weld Removal and Weld Cleanup

The double cut variant is particularly effective at removing weld beads, spatter, and excess weld material from fabricated assemblies, including stainless steel weldments.

Deburring in Hard-to-Reach Areas

The 6-inch long shank allows the tool to reach deep inside pipes, structural sections, housings, and other confined spaces where standard burrs cannot be positioned effectively.

Material Removal on Complex Geometries

The burr's design supports contouring and blending operations on irregular or complex surfaces, making it suitable for die work, mold finishing, and fabrication of non-planar components.

Compatible Materials

• Aluminum (non-ferrous cut)
• Brass (double cut and non-ferrous cut)
• Bronze (double cut)
• Cast Iron (double cut)
• Copper (non-ferrous cut)
• Carbon Fiber (non-ferrous cut)
• Fiberglass (double cut)
• Hard Rubber (double cut)
• Inconel (double cut)
• Magnesium (non-ferrous cut)
• Plastics (double cut)
• Steel — 45–55 Rc (double cut)
• Steel — 55–60 Rc (double cut)
• Steel — Carbon (double cut)
• Steel — Nickel Chrome (double cut)
• Steel — Stainless (double cut)
• Steel — Weldments (double cut)
• Titanium (double cut)
• Zinc (non-ferrous cut)

Product Documents

• Safety Data Sheet (SDS)
• Product Sheet
• Linecard

Safety Data Summary

Hazard Information

• NFPA Health Rating: 3; Flammability: 0; Reactivity: 0
• Primary route of entry: inhalation, skin contact, or eye contact with dust generated during grinding
• Inhalation of dust may cause irritation of the nose and throat; potential for occupational asthma and interstitial fibrosis with prolonged exposure
• Cobalt dust is listed as IARC Group 2B (possibly carcinogenic to humans)
• Skin contact may cause irritation or allergic skin rash due to cobalt sensitization
• Eye contact may cause irritation
• Not combustible, not flammable, not pyrophoric, not explosive in solid form
• Dusts may present a fire or explosion hazard under rare conditions of particle size, dispersion, and strong ignition source
• Incompatible with strong acids and strong oxidizers
• California Proposition 65 WARNING: This product can expose you to chemicals including Cobalt, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov
• WHMIS classification for Cobalt: D2B
• SARA Section 313 reportable chemical: Cobalt (CAS 7440-48-7, 20% max)

Personal Protective Equipment

• Eye protection: Safety glasses or goggles with side shields; contact lenses should not be worn; employer should provide an eyewash station in the immediate work area
• Gloves: Cloth or leather gloves recommended when contact with dust or mist is likely
• Respiratory protection: NIOSH-approved respirator if airborne dust concentration exceeds the applicable PEL or TLV; all requirements of 29 CFR 1910.134 must be met
• Hearing protection may be required
• Always use machine guards and wear safety glasses and protective clothing to prevent injury in the event of tool breakage
• Soiled clothing should be laundered separately

Safe Handling

• Use local exhaust ventilation adequate to limit personal exposure to airborne dust below PEL or TLV levels
• Clean up using methods that avoid dust generation: vacuum with appropriate filters, wet dust mop, or wet clean-up
• Do not shake clothing, rags, or other items to remove dust; remove dust by washing or vacuuming with appropriate filters
• Wash hands thoroughly after handling and before eating or smoking; wash exposed skin at end of work shift
• Store in a dry place; store in a manner that prevents accidental environmental contamination from traces of industrial lubricants or wetting oils
• Operations such as welding, dust generation, or fume generation can result in hazardous exposure; protect against dust and fume inhalation and skin or eye contact
• Transport of solid tungsten carbide product is not regulated in Canada or the United States; no Hazard Class signage or special labelling required for transport
• Dispose of by sending to an appropriate reclamation facility if available; otherwise dispose in compliance with federal, state/provincial, and local environmental regulations
• For powder fires: smother with dry sand, dry dolomite, ABC type fire extinguisher, or flood with water; use NIOSH-approved respirator for toxic dusts and fumes for small fires; self-contained breathing apparatus for large fires

Frequently Asked Questions

Q: What is the shank length of the 7000CX, and why does it matter?
A: The 7000CX features a 6-inch long shank, which allows it to reach deep cavities, recessed weld joints, and other hard-to-access areas that standard-length burrs cannot reach without repositioning the workpiece.

Q: What is the difference between the single cut and double cut variants?
A: The double cut tooth design is intended for aggressive material removal, while the single cut variant provides a more controlled cut suited to finishing operations. Both are available across the 7000CX SKU range.

Q: What materials can the 7000CX double cut burr be used on?
A: The double cut variant is compatible with ferrous and hard materials including carbon steel, stainless steel, cast iron, steel at 45–60 Rc hardness, nickel chrome steel, weldments, Inconel, titanium, bronze, fiberglass, hard rubber, plastics, and brass.

Q: What are the maximum RPM limits for the 6" long burrs?
A: Maximum cutting speeds for the 6" long burrs are: 1/4" diameter — 35,000 RPM; 5/16" — 34,000 RPM; 3/8" — 33,000 RPM; 7/16" — 29,000 RPM; 1/2" — 25,000 RPM; 5/8" — 20,000 RPM. For safety reasons, never use the 6" tungsten carbide burrs below 20,000 RPM.

Q: What is the head and shank construction of the 7000CX?
A: The burr features a solid carbide head for premium cutting performance and a brazed shank that ensures perfect concentricity and reduced vibration during operation.

Q: How does operating speed affect burr performance and life?
A: According to DRILLCO, using a burr at the correct speed will increase both life and performance. Refer to the maximum RPM table for the appropriate speed range based on burr diameter and shank length.