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Hapstone RS Family
Hapstone RS Ultra is the maximum configuration in the Hapstone RS family — a fully equipped sharpening system with dual clamp sets, case, digital angle gauge, Fine Angle Adjustment, and Advanced Stone Holder already included.
Maximum configuration
Hapstone RS Ultra is the most complete configuration in the Hapstone RS lineup. It includes the key upgrades, clamp options, measuring tools, and storage case from the start.
Ready now
This is a fully equipped system here and now — designed for users who want the broadest sharpening coverage and a premium out-of-the-box experience.
Clamp versatility
RS Ultra includes both Small Whole Milled Angled Clamps and Small Universal Angled Clamps. This combination gives you more freedom across different blade geometries, from thin fillet knives to everyday kitchen and utility blades.
Precision
The precise angle adjuster for Hapstone RS helps make small angle changes faster, easier, and more repeatable during sharpening.
Storage
The included case helps keep the system and accessories protected, organized, and ready for transport or storage.
Why RS Ultra
Hapstone RS Ultra is built for users who want the most complete RS setup from the beginning. With dual clamp sets, advanced stone holder, fine angle adjustment, digital angle gauge, and case included, it is the flagship configuration of the Hapstone RS family.
The maximum configuration in the Hapstone RS family, assembled for broad functionality right out of the box.
Includes small whole milled angled clamps and small universal angled clamps for wider sharpening coverage.
Case, digital angle gauge, precise angle adjuster, advanced stone holder, marker, screwdriver, and spare screws.
A strong all-in-one solution for users who want a complete system instead of adding upgrades step by step.
Sharpening range
The Hapstone RS system is designed to handle a wide range of blade sizes and thicknesses. It can sharpen knives from 40 to 230 mm in length and up to 6 mm thick, from thin fillet knives to thicker heavy-duty blades.
Ball pivot
An innovative ball pivot system gives you total sharpening freedom with smooth operation and secure magnetic attachment.
Materials
Aircraft aluminum, stainless steel guides, and a heavy 8 mm steel base work together to create a stable and long-lasting sharpening platform.
What’s included
The delivery pack contains everything you need to start sharpening immediately, including premium RS accessories and storage.
1 Platform
1 Rotating clamp module for Hapstone RS
1 Advanced Stone Holder with linear bearing for Hapstone RS
1 pair of Small Whole Milled Angled (Fillet) Clamps for Hapstone RS
1 pair of Small Universal Angled Clamps for Hapstone RS
1 Precise Angle Adjuster for Hapstone RS
1 Digital Angle Gauge Hapstone
1 Stopper
1 Case for Hapstone RS
1 Ball-End Hex Screwdriver (3 mm)
Spare Clamp Screws
1 King Size Sharpie Marker
Technical details
| System | Hapstone RS Ultra |
|---|---|
| Configuration | Maximum configuration of the Hapstone RS family |
| Weight | 88.18 oz (2.5 kg) |
| System Size | 11" × 5.5" × 7.4" (280 × 143 × 188 mm) |
| Minimum Blade Length | 1.6" (40 mm) |
| Maximum Blade Length | 9.1" (230 mm) |
| Maximum Blade Thickness | 0.3" (6 mm) |
| Sharpening Angle Range | 12° to 30° |
| Stone Compatibility | 6" × 1" (150 × 25 mm) 4" × 1" (100 × 25 mm) |
| Maximum Number of Clamps | 4 |
| Base | Heavy 8 mm steel base with silicone feet |
| Materials | Aircraft aluminum, stainless steel guides, steel base |
| Sharpening Stones | Not included |
| Warranty | 5 years |
System features
| Sharpening Coverage | Suitable for all types of knives, from thin fillet knives to thick cleavers. |
|---|---|
| Ball Pivot | Innovative magnetic 360° quick-release module for total sharpening freedom. |
| Clamp Configuration | Includes both small whole milled angled clamps and small universal angled clamps. |
| Storage | Comes with a dedicated case for Hapstone RS. |
| Fine Adjustment | Includes precise angle adjuster for accurate micro-adjustment. |
| Stone Holder | Includes advanced stone holder with linear bearing for smoother operation. |
Note: Sharpening stones are not included. Please select compatible stones and optional accessories using the product options above.
