Tools

A Shirogorov screw is slotted and proprietary, with one exception: the Q95 Ursus and F95 Ursus take hex bits. No hardware-store driver fits the slotted screws cleanly, which is why the workshop sells drivers at all and why a tool turns up as a line item on secondary-market listings. The factory tools are collected in their own right: the Custom Division Tool has numbered editions, and the drivers that ship with the Sinkevich Touch sets are the part most often missing when a set is resold. This page is the registry, one row per tool, with what it fits, when it was made and where it is listed. Prices are not here; every band and dated figure is in the price record.

The four kinds

The Custom Division Tool is a titanium bit driver, 4.00 in long, with five bits stored in the handle on a magnetic holder and carbon fiber or marbled carbon fiber inlays in the body. It is the driver for Custom Division hardware, and REK does not make bits for that hardware.

The Sinkevich tools fit the collaboration hardware and pivots. Three designs have shipped, each with a Sinkevich Touch set: the Cyber Tool (2021 and 2022), the Ambi-Tool (2023) and the Capsule Tool (2024 and 2025). The Cyber Tool was later sold on its own as the production Cyber Tool, an adjustable-angle driver with 60 and 90 degree positions.

The SiDiS pen screwdrivers are pen-form drivers for the production models, sold with one to five bits. Which pen fits which knife depends on the screw: the standard pen covers the F95, Tabargan, Hati, F3, 110, 110B and 111; the tri-lobe screw pen covers the Jeans, CannaBis, Sigma and the other tri-lobe screw models; the Extra Full Kit’s five bits cover most of the range, the Hokkaido included.

REK’s grade 5 titanium bits fit a standard 1/4 in driver and the standard production screws. They are the aftermarket route and the cheapest way to open a production knife properly.

The registry

The full registry, every tool with what it fits, its editions and the market range where there is one, is the tool catalog. A tool with several editions, like the Custom Division Tool, carries them as rows under one record.

Checking a tool

The fit of the bit in the factory slot is the test. A bit that marks the screw head is the wrong bit, whatever the listing says. A Sinkevich Touch set offered without its tool is an incomplete set and is priced as one; the tool designs and the sets they belong to are on the Sinkevich Touch page. The numbered Custom Division Tool editions carry their number on the body.

Using one

Keep the bits clean with isopropyl alcohol. Finger-tighten a pivot to find the action before the final turn, and do not over-tighten a pivot on an MRBS knife. If no proper driver is to hand, a cloth between an improvised tool and the screw is the difference between a maintained knife and a marred one. The teardown itself, supplies included, is on Tools, supplies and preparation and Disassembly, reassembly and pivot tuning.

The beads are on Beads; the leather goods, the bottle opener and everything else the factory makes that is neither knife nor tool are on Accessories.