NITRO Heavy-Duty Construction Reamers 3 PC Set — Premium HSS Performance for Metal Reaming
The DRILLCO NITRO Heavy-Duty Construction Reamers 3 PC Set (Item #428N3S) is a professional-grade reamer set engineered for contractors and trades professionals working with metal. Manufactured from premium grade high speed steel (HSS) in the United States, these reamers are designed for enlarging holes in metal, aligning misaligned holes, and reaming operations using power tools equipped with standard 3-jaw chucks. The set includes three reamers covering sizes from 1/2" to 3/4", making it a versatile solution for a range of common field and fabrication tasks.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | DRILLCO |
| Item # | 428N3S |
| UPC | 662980386002 |
| Country of Origin | United States |
| Number of Pieces | 3 |
| Set Sizes | 1/2" to 3/4" |
| Material | Premium grade HSS (High Speed Steel) |
| Shank Type | 3-flats reduced shank |
| Surface Treatment | Black and gold surface treatment for maximum lubricity |
| Applications | Enlarging holes in metal, aligning misaligned holes in metal, reaming with power tools that use standard 3-jaw chucks |
Available Sizes
| Item # | Description | Size Range |
|---|---|---|
| 428N3S | Reamer set 3 pc | 1/2" to 3/4" |
Unlike standard black oxide reamers suited only for low to medium tensile strength materials, the NITRO set's black and gold surface treatment provides better resistance to corrosion and breakage while increasing lubricity, making it suitable for use on most materials. The high-spiral flute design and safety collar on the shank further differentiate these reamers from basic construction reamer alternatives by delivering faster chip evacuation and built-in over-penetration protection.
Key Features & Benefits
Premium Grade HSS Construction
Built from premium grade high speed steel, these reamers are engineered for extended tool life in demanding metal-working environments. HSS provides the hardness and toughness needed to maintain cutting performance through repeated use on metal substrates.
Black and Gold Surface Treatment
The black and gold surface treatment adds a hard, protective layer to the reamer body, increasing hardness without increasing brittleness. This treatment maximizes lubricity, reducing friction during cutting and helping the tool run cooler and last longer.
High Spiral Flutes
High spiral flutes are designed for extremely fast operations and efficient chip evacuation. For contractors working in the field, faster chip clearing means less clogging, reduced heat buildup, and more consistent hole quality.
3-Flats Reduced Shank
The 3-flats reduced shank is specifically designed for use in portable power tools, allowing secure seating in standard 3-jaw chucks. This makes the reamers practical for on-site use without requiring specialized equipment.
Tapered Point
The tapered point allows for easy realignment of holes, which is critical when working with misaligned structural members or pre-drilled components. This feature saves time by guiding the reamer into position without additional setup steps.
Safety Collar on Shank
A safety collar on the shank prevents over-penetration during reaming operations. This protects both the workpiece and the operator, reducing the risk of tool breakthrough and maintaining consistent hole depth.
Common Applications
Enlarging Holes in Metal
These reamers are purpose-built for enlarging existing holes in metal to precise dimensions, making them essential for structural steel and fabrication work where hole sizing is critical.
Aligning Misaligned Holes in Metal
The tapered point and high-spiral flutes make these reamers effective for correcting misaligned holes in metal components, a common requirement in steel erection and ironwork.
Reaming with Portable Power Tools
The 3-flats reduced shank is designed for use in portable power tools with standard 3-jaw chucks, enabling contractors to perform reaming operations on-site without stationary equipment.
Compatible Materials
- Metal (general — enlarging and aligning holes)
Product Documents
Safety Data Summary
Hazard Information
- During normal operation and usage, high speed steel products do not present inhalation, ingestion, or other chemical hazards.
- Operations such as grinding, cutting, machining, burning, and welding may release dusts, fumes, or vapors that may 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 and irritation of the throat, chills, and fever persisting 12 to 48 hours.
- Chromium (component): listed as a carcinogen by NTP and OSHA; associated with dermatitis, inflammation and/or ulceration of the upper respiratory tract, and possibly cancer of nasal passages and lungs.
- Tungsten (component): some evidence of pulmonary involvement such as cough.
- Vanadium (component): eye and respiratory tract irritant.
- Cobalt dust from grinding is reported as the most probable cause of respiratory diseases including occupational asthma and interstitial fibrosis.
- Skin contact with dust can cause irritation or allergic skin rash due to cobalt sensitization.
- NFPA Hazard Rating: Health 1; Flammability 0; Reactivity 0.
- Fine metal particles produced when ground or sawed can burn; high concentrations in air may present an explosion hazard.
Personal Protective Equipment
- Wear safety glasses or goggles with side shields; do not wear contact lenses when handling these materials.
- Cloth or leather gloves are 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 might be required.
- Always use machine guards and wear protective clothing to prevent injury in the event of tool breakage.
Safe Handling
- Perform grinding, cutting, and machining operations in well-ventilated areas; use local exhaust ventilation adequate to limit personal exposure to airborne dust below PEL or TLV levels.
- Wash hands thoroughly after handling and before eating or smoking; wash exposed skin at the end of the work shift.
- Do not shake clothing, rags, or other items to remove dust — remove dust by washing or vacuuming with appropriate filters.
- Clean up using methods that avoid dust generation such as 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 traces of industrial lubricants or wetting oils.
- Soiled clothing should be laundered separately.
- Incompatible materials: strong acids, strong oxidizers.
- Emergency phone number: CHEM-TEL INC 1-800-255-3924.
Frequently Asked Questions
Q: What is the NITRO 428N3S set designed to do?
A: The 428N3S set is designed for enlarging holes in metal, aligning misaligned holes in metal, and reaming with power tools that use standard 3-jaw chucks.
Q: What sizes are included in the 3 PC set?
A: The set covers sizes from 1/2" to 3/4" and includes 3 reamers.
Q: What type of shank do these reamers have, and what tools can they be used with?
A: These reamers feature a 3-flats reduced shank, which is designed for use in portable power tools equipped with standard 3-jaw chucks.
Q: What material are the reamers made from, and what surface treatment is applied?
A: The reamers are made from premium grade HSS (high speed steel) and feature a black and gold surface treatment that adds a hard, protective layer for maximum lubricity, increasing hardness without increasing brittleness.
Q: Is there a feature to prevent the reamer from going too deep into the workpiece?
A: Yes. Each reamer includes a safety collar on the shank specifically designed to prevent over-penetration during reaming operations.
Q: Where are these reamers manufactured?
A: The NITRO Heavy-Duty Construction Reamers are manufactured in the United States by DRILLCO.