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Hapstone RS Family
Hapstone RS Black is an upgraded configuration in the Hapstone RS family with four whole milled angled clamps, digital angle gauge, thickness compensator, and the signature magnetic ball pivot system for broader sharpening capability right out of the box.
Configuration
Hapstone RS Black expands the standard RS setup with additional clamps, digital angle measurement, and thickness compensation for a more capable sharpening experience.
Coverage
With four small whole milled angled clamps included, RS Black offers broader practical coverage across different blade sizes and geometries.
Clamp system
The RS Black kit comes with four Small Whole Milled Angled (Fillet) Clamps for Hapstone RS. This configuration increases flexibility and helps support a wider range of sharpening scenarios.
Adjustment
The included Thickness Compensator helps maintain angle consistency when switching between sharpening stones of different thicknesses.
Base
The heavy steel base with silicone feet keeps the sharpener steady during use and helps deliver consistent sharpening results.
Why RS Black
Hapstone RS Black is a stronger configuration for users who want more functionality than the basic RS system, while staying below the maximum RS Ultra setup.
Included from the start for broader sharpening options and improved flexibility across blade shapes.
Helps set and monitor sharpening angles more accurately during setup and use.
Makes it easier to keep angles consistent when changing between stones of different thicknesses.
The 360° quick-release ball pivot system gives you more freedom and smoother movement during sharpening.
Sharpening range
The Hapstone RS system is designed to accommodate knives from 40 to 230 mm in length and up to 6 mm thick, from thin fillet knives to thicker working blades.
Ball pivot
An innovative magnetic ball pivot provides total sharpening freedom with smooth movement and secure attachment.
Materials
Aircraft aluminum, stainless steel guides, and a heavy 8 mm steel base combine to create a stable and durable sharpening platform.
What’s included
The RS Black package contains the essential RS platform plus the key accessories and upgrades that make this configuration more capable from day one.
1 Platform
1 Rotating clamp module for Hapstone RS
1 Magnetic 360° quick-release ball pivot module
4 Small Whole Milled Angled (Fillet) Clamps for Hapstone RS
1 Digital Angle Gauge Hapstone
1 Thickness Compensator Hapstone RS
1 Stopper
1 Ball-End Hex Screwdriver (3 mm)
Spare Clamp Screws
1 King Size Sharpie Marker
Technical details
| System | Hapstone RS Black |
|---|---|
| Configuration | Upgraded Hapstone RS configuration |
| Weight | 88.18 oz (2.5 kg) |
| System Size | 11 × 5.5 × 7.4 in (280 × 143 × 188 mm) |
| Blade Length | 40 mm – 230 mm |
| Blade Thickness | Up to 6 mm |
| Sharpening Angle | 12° – 30° |
| Stone Compatibility | 6×1 in (150×25 mm) 4×1 in (100×25 mm) |
| Maximum clamps | Up to 4 clamps on guide |
| Materials | Aircraft aluminum, stainless steel guides, heavy 8 mm steel base |
| Sharpening Stones | Not included |
| Warranty | 5 years |
