Reamers
High Precision Reamers for Professional Applications
Reamers are essential cutting tools designed to perfect the size and finish of pre-drilled holes. Our premium reamers deliver unmatched accuracy for various industrial applications.
Key Specifications of Our Reamers
- Material: High-speed steel (HSS) or carbide tipped
- Diameter Range: 1mm to 50mm
- Tolerance: ±0.002mm to ±0.05mm
- Flute Types: Straight, spiral, or helical
- Shank Types: Straight, tapered, or machine taper
- Surface Finish: Precision ground and polished
Reamers Technical Comparison
| Model | Material | Diameter Range | Flute Count | Hardness (HRC) |
|---|---|---|---|---|
| R-100 | HSS | 1-10mm | 6 | 62-65 |
| R-200 | Carbide | 5-25mm | 8 | 90-92 |
| R-300 | HSS-Co | 10-50mm | 10 | 65-68 |
Reamers FAQ Section
Q: What is the difference between hand reamers and machine reamers?
A: Hand reamers have a longer lead and square drive for manual operation, while machine reamers are designed for power tools with shorter leads and different shank configurations. Machine reamers typically remove less material per pass and require more precise alignment.
Q: How often should reamers be sharpened?
A: Reamers should be sharpened after every 500-1000 holes for HSS models or 2000-3000 holes for carbide models, depending on material hardness. Signs of dullness include increased cutting force, poor surface finish, or dimensional inaccuracy.
Q: Can reamers be used on hardened materials?
A: Standard HSS reamers work best on materials up to 35 HRC. For harder materials (45-65 HRC), carbide or diamond-coated reamers are recommended. Always use appropriate cutting fluids and reduced speeds when working with hardened materials.
Reamer Selection Guide
Choosing the right reamer depends on several factors:
- Material being cut: Softer materials allow higher speeds
- Hole tolerance: Finer tolerances require precision ground reamers
- Production volume: Carbide lasts longer for high-volume work
- Machine capabilities: Consider RPM and rigidity
Additional Reamers FAQ
Q: What causes chatter marks when reaming?
A: Chatter marks typically result from excessive clearance, improper alignment, tool deflection, or incorrect speed/feed rates. Solutions include using reamers with proper piloting, reducing overhang, adjusting cutting parameters, or switching to spiral flute designs.
Q: How much material should be left for reaming?
A: For optimal results, leave 0.1-0.5mm (0.004-0.020") of material for finishing with reamers. The exact amount depends on material type - softer materials can have more stock left, while harder materials require less.
Q: What maintenance do reamers require?
A: Regular cleaning after use, proper storage in protective cases, periodic inspection for wear or damage, and timely sharpening by qualified technicians. Always use recommended cutting fluids specific to your material.
Reamers Performance Data
| Material | Recommended Speed (SFM) | Feed Rate (mm/rev) | Expected Tool Life |
|---|---|---|---|
| Aluminum | 200-300 | 0.05-0.15 | 10,000+ holes |
| Steel (1020) | 60-100 | 0.03-0.10 | 3,000-5,000 |
| Stainless (304) | 30-50 | 0.02-0.08 | 1,500-2,500 |
| Cast Iron | 80-120 | 0.04-0.12 | 4,000-6,000 |
Final Reamers FAQ
Q: What's the difference between chucking reamers and straight reamers?
A: Chucking reamers have shorter cutting lengths and are designed for machine use with rigid setups, offering better accuracy for production work. Straight reamers have longer cutting lengths and more flexibility, suitable for hand operations and alignment correction.
Q: Can reamers be reground?
A: Yes, quality reamers can be reground multiple times, typically up to 70-80% of their original diameter. This should be done by specialized tool grinding services that maintain the original geometry and cutting angles.
Q: How do I prevent tapered holes when reaming?
A: Tapered holes usually indicate tool deflection, misalignment, or excessive feed rate. Solutions include using stiffer reamers with shorter flutes, ensuring proper alignment between tool and workpiece, reducing feed rates, or employing guided reaming systems.