Hapstone RS Black Knife Sharpener

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Hapstone RS Family Advanced RS system. More included. Hapstone RS Black is an upgraded configuration in the Hapstone RS family with four whole milled angled clamps, digital angle g auge, thickness compensator, and the signature magnetic ball pivot system for broader sharpening capability right out of the box. Configuration More than the base system. Hapstone RS Black expands the standard RS setup with additional clamps, digital angle measurement, and thickness compensation for a more capable sharpening experience. Coverage Built for more knife types. With four small whole milled angled clamps included, RS Black offers broader practical coverage across different blade sizes and geometries. Clamp system Four whole milled clamps included. 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 Thickness compensation included. The included Thickness Compensator helps maintain angle consistency when switching between sharpening stones of different thicknesses. Base Stable and workshop-ready. The heavy steel base with silicone feet keeps the sharpener steady during use and helps deliver consistent sharpening results. Why RS Black Expanded RS capability. 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. 4 whole milled clamps Included from the start for broader sharpening options and improved flexibility across blade shapes. Digital angle gauge Helps set and monitor sharpening angles more accurately during setup and use. Thickness compensator Makes it easier to keep angles consistent when changing between stones of different thicknesses. Magnetic ball pivot The 360° quick-release ball pivot system gives you more freedom and smoother movement during sharpening. Sharpening range Designed for all types of knives. 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 Magnetic 360° quick-release module. An innovative magnetic ball pivot provides total sharpening freedom with smooth movement and secure attachment. Materials Built for durability. Aircraft aluminum, stainless steel guides, and a heavy 8 mm steel base combine to create a stable and durable sharpening platform. What’s included Upgraded kit contents. The RS Black package contains the essential RS platform plus the key accessories and upgrades that make this configuration more capable from day one. Core system 1 Platform1 Rotating clamp module for Hapstone RS1 Magnetic 360° quick-release ball pivot module Clamps 4 Small Whole Milled Angled (Fillet) Clamps for Hapstone RS Adjustment & Measurement 1 Digital Angle Gauge Hapstone1 Thickness Compensator Hapstone RS1 Stopper Accessories 1 Ball-End Hex Screwdriver (3 mm)Spare Clamp Screws1 King Size Sharpie Marker Technical details Specifications 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 Video reviews .rs-black-apple { color: #1d1d1f; line-height: 1.5; } .rs-black-apple *, .rs-black-apple *::before, .rs-black-apple *::after { box-sizing: border-box; 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