KDTU Hybrid CBN (Pro) stones set

The KDTU Hybrid CBN Pro set is a high-performance upgrade of the KDTU hybrid stone line, developed for advanced users who require extended lifespan and consistent efficiency when working with hard and powder steels.

This series features a 3 mm abrasive layer, providing significantly increased durability and long-term sharpening performance.

The set includes 5 stones:

• 225 grit (100/80 µm)

• 325 grit (50/40 µm)

• 650 grit (28/20 µm)

• 1500 grit (14/10 µm)

• 4000 grit (5/3 µm)

Advantages:

• Extended 3 mm abrasive layer — superior lifespan and endurance.

• Ideal for experienced sharpeners and high-volume sharpening tasks.

• Excellent performance on hard and powder steels 67 HRC+.

• Hybrid (metal-organic) bond provides both durability and refined finish.

• Can be used dry or with oil (Hapstone Magic, Norton, Boride recommended).