PROXXON 28876 HSS-TIN 1.5-4mm drill bit set

PROXXON 28876 HSS-TIN 1.5-4mm drill bit set With centering pin, in case. Of diameters: 1.5 - 2 - 2.5 - 3 - 3.5 and 4. For precision threading in wood, plastics, non-ferrous metals and other metal alloys. Titanium coating reduces friction and increases durability. Shank diameter 0.3mm. Note: The term HSS for this type of tool derives from the material used in production. It is a so-called tool alloy steel - it is characterized by exceptional wear resistance up to 600°C. When machining steel, it is recommended to use cooling lubricants, such as cutting oil or cooling emulsion. For aluminum, spirit or petroleum can be used. On the other hand, with plastics and wood, we drill dry. The following is recommended.