* FREE SHIPPING * Just made these new bits that I'm releasing. They fit some Sinkevich models that utilize the triangle screws. These non-marring bits are made in the USA (thus the price) and are grade 5 Titanium. They are made to fit a standard 1/4" driver, which we also offer for sale. They feature quick connect indentations which allow the bit to be locked in place with a Wera or Wiha locking driver (other drivers are not guaranteed to lock up properly). All of these are also tapped in the end for a 6-32 screw which make refinishing a breeze and will allow you to install a set screw if you want these to work with a magnetic driver. The 1/4" Bit-holding screwdrivers we sell are made by Wera and are very high quality. They feature a quick-release chuck allowing the tool bit to lock in place and switched out rapidly These tool bits should fit the following models: Shirogorov/Sinkevich Jeans Shirogorov/Sinkevich Pero Shirogorov/Sinkevich Sigma Shirogorov/Sinkevich Poluchetkiy Sinkevich Touch, Strip, Bio, and Cannabis Various Sinkevich customs Does not fit: Shirogorov/Sinkevich Kami