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Key Depth Calculator

Calculate precise cutting depths for motorcycle keys based on ISO 2491:1974 standards with support for various key types and cutting specifications for optimal security and functionality.

±0.01 Precision (mm)
ISO 2491:1974 Standard
15+ Key Types Supported

Calculate Key Depth

Enter your key specifications to calculate precise cutting depths

Standard range: 1.0mm - 5.0mm

Calculation Results

Precise cutting depth specifications

Example Results (Honda Standard Key, Cut 5)
Cutting Depth: 3.25 mm
Tolerance Range: 3.23 - 3.27 mm
Material Remaining: 1.75 mm
ISO Standard: ISO 2491:1974 Compliant

How It Works

Our calculator uses ISO 2491:1974 standards to determine precise cutting depths based on key type, brand specifications, and cut numbers. Each calculation considers material thickness and tolerance requirements for optimal results.

  • ISO standard compliance
  • Brand-specific calculations
  • Tolerance analysis
  • Material optimization

Supported Key Types

Calculate cutting depths for various motorcycle key types with brand-specific specifications and industry-standard tolerances.

  • Standard mechanical keys
  • Transponder keys
  • Smart keys
  • Laser cut keys
  • Dimple keys

Precision Standards

Industry-leading precision with multiple tolerance classes to meet various manufacturing requirements and quality standards.

  • Precision: ±0.01mm tolerance
  • Standard: ±0.02mm tolerance
  • General: ±0.05mm tolerance
  • ISO 2491:1974 compliant

Step-by-Step Tutorial

Learn how to use the key depth calculator effectively for professional results

1

Select Key Type

Choose the appropriate key type from the dropdown menu. Different key types have varying depth specifications and cutting requirements.

2

Choose Motorcycle Brand

Select the motorcycle manufacturer. Each brand has specific key specifications that affect cutting depth calculations.

3

Enter Cut Number

Specify the cut number (0-9). Cut 0 represents maximum depth, while higher numbers indicate progressively shallower cuts.

4

Set Material Thickness

Input the key blank material thickness in millimeters. This affects the final cutting depth and material remaining calculations.

5

Select Tolerance Class

Choose the appropriate tolerance class based on your precision requirements and manufacturing capabilities.

Frequently Asked Questions

Common questions about key depth calculations and ISO standards

What is ISO 2491:1974?

ISO 2491:1974 is the international standard that specifies the dimensions and tolerances for key blanks used in pin tumbler cylinder locks, including motorcycle keys.

How accurate are the calculations?

Our calculations are based on industry standards and manufacturer specifications, providing accuracy within ±0.01mm for precision tolerance class.

What if material remaining is too low?

If material remaining is less than 0.5mm, consider using thicker key blank material to ensure structural integrity and durability.

Can I use this for all motorcycle brands?

The calculator supports major motorcycle brands with their specific key specifications. For unlisted brands, use similar specifications as a reference.

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