Crystal Hardened & Ground Knife Edge Straight Edge — AA-2801
Precision straight edges ensure accurate layout and inspection in metalworking environments. Constructed from hardened ground steel, these tools provide reliable reference surfaces for quality control. • Knife edge design enhances visibility for precise marking • Available in multiple sizes for various workpiece dimensions • Ideal for precision measuring, inspection, and layout tasks • Maintains flatness under demanding industrial conditions
Specifications
For: AA-2801- Brand
- Crystal
- Accuracy
- as per IS-3512-1966
- Material
- High-quality tool steel
- Hardness
- 55 HRC ± 2 HRC
- Packaging
- Individual wooden box
- Series
- AA-280
- Size
- 50 X 30 X 8 mm
Configurations
Click a row to switch| Variant | Size | Series | Price |
|---|---|---|---|
| AA-2801 | 50 X 30 X 8 mm | AA-280 | ₹1,113 |
| AA-2802 | 75 X 35 X 8 mm | AA-280 | ₹1,518 |
| AA-2803 | 100 X 40 X 10 mm | AA-280 | ₹1,822 |
| AA-2804 | 150 X 40 X 10 mm | AA-280 | ₹2,429 |
| AA-2805 | 200 X 50 X 12 mm | AA-280 | ₹3,643 |
| AA-2806 | 250 X 50 X 12 mm | AA-280 | ₹4,039 |
| AA-2807 | 300 X 60 X 12 mm | AA-280 | ₹4,444 |
| AA-2808 | 500 X 50 X 15 mm | AA-280 | ₹13,101 |
| AA-2809 | 600 X 60 X 20 mm | AA-280 | ₹15,714 |
Care & Maintenance Guidelines
- Store in a dry environment to prevent rust and corrosion
- Avoid dropping or striking the knife edge to prevent chipping
- Clean with a soft cloth to remove oil and debris after use
- Apply light oil coating for long-term storage protection
- Handle with care to maintain the precision ground flatness
- Inspect edges regularly for signs of wear or damage
- Keep away from magnetic fields to avoid potential interference
Industrial Applications
- Essential for precision layout work on metal or wood surfaces
- Used in quality control departments for flatness verification
- Supports setup alignment in milling and machining environments
- Suitable for checking squareness in assembly and fabrication
- Ideal for toolroom applications requiring high accuracy
- Assists in verifying machine bed flatness and alignment
- Compatible with various measuring instruments and gauges
Material & Construction Quality
- Manufactured from high-grade hardened steel for structural integrity
- Precision ground edges ensure consistent contact with workpieces
- Knife edge design allows for accurate alignment and marking
- Robust build minimizes flex during heavy-duty inspection tasks
- Durable surface finish reduces friction during layout operations
- Heat-treated components maintain stability under thermal stress
- Corrosion-resistant finish protects against shop floor environments
Product Overview & Key Features
- Hardened & Ground Knife Edge Straight Edge for Industrial Use
- Provides a stable 90-degree reference for precision layout and inspection tasks
- Constructed from hardened steel to ensure minimal deflection under load
- Ground flatness guarantees reliable measurements during operations
- High hardness resists wear over time for long-term performance
- Ideal for quality control and machining setups across various industries
- Available in multiple dimensions for different workpiece needs
- Series AA-280 offers consistent quality for professional applications
Frequently asked
What is the primary function of this straight edge?
It provides a stable 90-degree reference for precision layout and inspection tasks.
Is this product suitable for heavy-duty machining setups?
Yes, the hardened steel construction ensures minimal deflection under load.
How do I maintain the accuracy of the knife edge?
Keep it clean, dry, and avoid impact to prevent edge damage or wear.
More questions buyers ask
What is a knife edge straight edge used for?
A knife edge straight edge is a precision tool used for checking surface flatness and straightness with high accuracy. The knife edge allows for line contact, making it easier to spot deviations.
What material is the Crystal straight edge made from?
It is manufactured from high-grade, wear-resistant hardened and ground steel to ensure durability and maintain accuracy over time.
Is the Crystal straight edge corrosion-resistant?
The tool is made of steel and should be properly maintained. Always store it in a dry environment and apply a light oil coating to prevent rust and corrosion.
What is the hardness rating of this straight edge?
The Crystal knife edge straight edge is hardened to 58-60 HRC, providing excellent wear resistance for demanding industrial use.
Does this product come with a warranty?
Yes, all Crystal measuring instruments come with a 1-year manufacturer's warranty against manufacturing defects. We provide a GST invoice for all purchases.
Who should choose the Crystal AA-2801 (50mm) model?
The 50mm AA-2801 is ideal for small, high-precision work, such as inspecting small machined parts, tool and die making, or detailed layout tasks where space is limited.
Who should choose the Crystal AA-2805 (200mm) model?
The 200mm AA-2805 is a versatile mid-range option suitable for general machine shop use, aligning shorter workpieces, and quality control on medium-sized components.
Who should choose the Crystal AA-2809 (600mm) model?
The 600mm AA-2809 is designed for checking the flatness and alignment of longer surfaces, such as machine beds, large fixtures, and long guideways in industrial machinery.
What is the main difference between the 150mm and 300mm models?
The primary difference is the length. The 150mm model is for smaller, intricate jobs, while the 300mm model provides a longer reference surface for medium-sized tasks like aligning machine setups or checking larger parts.
How do I choose between the 500mm and 600mm straight edges?
Choose based on your workpiece size. The 600mm model offers the longest reference for maximum accuracy on large machine beds and surfaces. The 500mm is a slightly more manageable but still very capable option for large-scale inspection.
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Full description
Precision straight edges ensure accurate layout and inspection in metalworking environments. Constructed from hardened ground steel, these tools provide reliable reference surfaces for quality control. • Knife edge design enhances visibility for precise marking • Available in multiple sizes for various workpiece dimensions • Ideal for precision measuring, inspection, and layout tasks • Maintains flatness under demanding industrial conditions