The Linear Ball-Bearing Pivot Unit is an optional upgrade for the first revision of Hapstone M2 utilizing PTFE insert. The linear ball-bearing provides extra smooth shaft movement and requires no lubrication or cleaning.
One of the best selling points of flagship Hapstone R1 comes to Hapstone M2. The second revision of Hapstone M2 implements the linear ball-bearing pivot unit. Owners of Revision 1 can purchase the linear ball-bearing pivot unit separately.
The linear bearing equipped instrument, is by far the smoothest, and virtually play-free, guided rod system I've used thus far. There is no vibration, or perceivable movement, but its able to simultaneously exhibit extremely precise and smooth reciprocating, linear action.
Daniel Gigli, Quality Technician/Engineer
Today we revealed new Hapstone K1 knife sharpener in mid-tier price segment featuring customers’ most wanted feature - the Rotating Clamp System. The rotating clamp system is featured in two Hapstone knife sharpeners: flagship Hapstone R1 with ultimate combinations of capabilities and Hapstone K1 with optimal features for the best price. Hapstone R1 and Hapstone K1 exemplify dedication to meeting the needs of sharpening enthusiasts by providing them with greater choice and convenience.
Hapstone R1 and Hapstone K1 are immediately available for purchase on Gritomatic in the USA.
Early birds are first Hapstone R1 production units of a very limited quantity dedicated for media. Regular production will be available at the end of April. Hapstone R1 prices are starting from $399.
Debado is a premium series from Suehiro made of aluminum oxide with the magnesia binder similar to Chosera and Shapton Pro series. The magnesia binder gives Debado excellent sharpening quality and performance, and high wear resistance. Debado series stones are universal and can be used to sharpen knives of any steel including high carbon, vanadium, and chromium steels.
The OCB version of Venev Diamonds utilizes a brand-new yellow binder with no abrasive particles in the composition. OCB is available in extra-fine grits only and offers better scratch-free sharpening result.
Venev OCB Diamonds are available in F 1200 grit (2.5 um) only. F 800 grit (6 um) will be released in Q1. Dual-sided formats of OCB will be released at the same time.
Legacy binder composition includes medium-hard particles up to 7 microns large. (It was necessary to stabilize diamond/binder matrix.) As result, when sharpening some steels the legacy F 1200 and F 2000 may not show noticeable progression after F 800. In this case, the new OCB diamonds will be the good upgrade.
We recommend lapping all Venev diamonds including OCB because flatness tolerance is the same as for legacy diamonds. However, it's not mandatory for OCB version because the surface is finer.
It will not be released due to substantial technology limits. F 2000 will be legacy only.