DRILLCO TCR High-Speed Steel Alignment Reamer — Precision Hole Sizing with Reduced Slippage
The DRILLCO TCR is a high-speed steel alignment reamer engineered for smooth, accurate alignment and precision hole sizing in metalworking applications. Featuring a 1/2″ three-flatted shank, it is designed to minimize slippage in the chuck during operation, ensuring consistent, repeatable results. The black and bronze oxide finish provides enhanced lubricity and surface protection suited to demanding shop environments. This reamer is intended for contractors and trades professionals requiring reliable alignment and precision hole sizing performance.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | DRILLCO |
| SKU | 072279 |
| UPC | 086839722795 |
| Country of Origin | United States |
| Material | High-Speed Steel |
| Shank | 1/2″ three-flatted |
| Finish | Black and bronze oxide |
| Product Type | Alignment Reamer |
The combination of a three-flatted shank and a black and bronze oxide finish sets the TCR apart from standard straight-shank reamers by actively reducing slippage and improving lubricity during cutting. This dual-finish treatment addresses both friction management and surface protection, making it a more capable option than single-finish alternatives for precision alignment work.
Key Features & Benefits
High-Speed Steel Construction
High-speed steel is the industry-standard substrate for general-purpose metalworking tools, offering a balance of hardness and toughness suitable for a wide range of materials. For contractors, this means a reamer that holds an edge through repeated use without becoming brittle under normal operating conditions.
1/2″ Three-Flatted Shank
The three-flatted shank design provides a positive mechanical grip in the chuck, significantly reducing the risk of slippage during high-torque reaming operations. This feature improves both safety and dimensional accuracy by keeping the tool firmly seated throughout the cut.
Black and Bronze Oxide Finish
The dual black and bronze oxide surface treatment increases lubricity and reduces friction at the cutting interface, which helps extend tool life and improve chip flow. This finish is particularly beneficial when working on harder metals where heat and friction are primary concerns.
Precision Alignment Performance
The TCR is specifically designed for alignment applications, delivering smooth, accurate hole sizing that meets the demands of structural and fabrication work. Consistent alignment performance reduces the need for secondary operations and rework on the job site.
Common Applications
Precision Hole Sizing
Used to bring drilled holes to a precise final diameter, ensuring tight tolerances required in structural steel and fabrication assemblies.
Structural Steel Alignment
Ideal for aligning bolt holes in steel members during erection, allowing fasteners to be inserted smoothly without distorting the surrounding material.
Metalworking and Fabrication
Suited for general metalworking environments where accurate hole finishing and alignment are required as part of the fabrication process.
Product Documents
Safety Data Summary
Hazard Information
- During normal use, high-speed steel products do not present inhalation, ingestion, or other chemical hazards.
- Grinding, cutting, machining, burning, or welding may release dusts, fumes, or vapors that present health hazards if exposure limits are exceeded.
- Excessive inhalation of metallic fumes and dusts may cause irritation of eyes, nose, and throat; symptoms may include metallic taste, dryness, chills, and fever persisting 12–48 hours.
- Chromium (present 0–5% by weight) is listed as a carcinogen by NTP and OSHA; associated with dermatitis, upper respiratory tract inflammation/ulceration, and possible nasal/lung cancer.
- Tungsten (present 5–10% by weight): some evidence of pulmonary involvement such as cough.
- Vanadium (present 0–5% by weight): eye and respiratory tract irritant.
- Cobalt dust (component of HSS alloy) is associated with respiratory diseases including occupational asthma and interstitial fibrosis.
- Skin contact with dust may cause irritation or allergic skin rash due to cobalt sensitization.
- Eye contact with dust may cause irritation.
- Fine metal particles produced during grinding can burn; high concentrations in air may present an explosion hazard.
- NFPA Hazard Rating: Health 1; Flammability 0; Reactivity 0.
Personal Protective Equipment
- Wear safety glasses or goggles with side shields; do not wear contact lenses when handling.
- Cloth or leather gloves recommended when contact with dust or mist is likely.
- Use an appropriate NIOSH-approved respirator if airborne dust concentration exceeds the applicable PEL or TLV.
- Hearing protection may be required.
- Always use machine guards and wear protective clothing to prevent injury in the event of tool breakage.
- Employer should provide an eye wash station within the immediate work area.
Safe Handling
- Perform grinding, cutting, and machining operations in well-ventilated areas; use local exhaust ventilation adequate to keep airborne dust below PEL/TLV.
- Wash hands thoroughly after handling and before eating or smoking; wash exposed skin at end of work shift.
- Do not shake clothing, rags, or other items to remove dust — remove dust by washing or vacuuming with appropriate filters.
- Clean up spills using methods that avoid dust generation: vacuum with appropriate filters, wet dust mop, or wet clean-up.
- Store in a dry place in a manner that prevents accidental environmental contamination from industrial lubricants or wetting oils.
- Soiled clothing should be laundered separately.
- Incompatible with strong acids and strong oxidizers.
- For powder fires: smother with dry sand, dry dolomite, ABC-type fire extinguisher, or flood with water; do not release runoff to swales or waterways.
- Dispose of in compliance with federal, state/provincial, and local environmental regulations; send to a reclamation facility if available.
Frequently Asked Questions
Q: What is the TCR alignment reamer designed for?
A: The TCR is designed for precision hole sizing and alignment applications in metalworking. It delivers smooth, accurate alignment and is suited for use wherever consistent hole finishing is required.
Q: What shank size and style does the TCR use?
A: The TCR features a 1/2″ three-flatted shank, which provides a positive mechanical grip in the chuck and reduces slippage during operation.
Q: What material is the TCR made from?
A: The TCR is manufactured from high-speed steel (HSS), the standard substrate for general-purpose metalworking cutting tools.
Q: What finish does the TCR have, and why does it matter?
A: The TCR has a black and bronze oxide finish. This dual surface treatment increases lubricity and reduces friction at the cutting interface, helping to extend tool life and improve performance.
Q: Where is the DRILLCO TCR made?
A: The TCR is manufactured in the United States.
Q: What are the SKU and UPC for ordering the TCR?
A: The SKU is 072279 and the UPC is 086839722795.