Replacement Cups for BONT PLATINUM Blades

Replacement Cups for BONT PLATINUM Blades

Bont Platinum cups

Height:

• 25mm (standard)
• 28mm
• 30mm
• 32mm
• 35mm

These are after market cups for your BONT PLATINUM K390 blades. They come in a range of heights. 25mm is the standard height that comes with the blades.

Aluminum 7075-T6 is a high-strength aerospace-grade aluminum alloy that has been heat-treated to achieve maximum hardness and durability.

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7075-T6 aluminum is:

* A zinc-based aluminum alloy (main alloying element is zinc, with magnesium and copper)
* In the T6 temper condition, meaning it has been:

1. Solution heat-treated (heated to dissolve alloying elements)
2. Artificially aged (heated again at a lower temperature to increase strength)

Key Properties

Very high strength
Comparable to some steels, making it one of the strongest aluminum alloys available.

Lightweight
Much lighter than steel while still offering excellent structural performance.

Good fatigue resistance
Handles repeated stress well (important for tools and mechanical parts).

Moderate corrosion resistance
Not as corrosion-resistant as some other aluminum alloys, so it’s often coated or anodized.

Lower weldability
Difficult to weld compared to other aluminum types.

Why “T6” Matters

The T6 temper specifically indicates:

* Maximum strength and hardness
* Improved wear resistance
* Stable mechanical properties

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Common Uses

* Aerospace components (aircraft frames, wings)
* High-performance tools and jigs (like your sharpening jig)
* Bicycle frames and automotive parts
* Precision mechanical components