The FISCH 5-piece set Pen Drill set includes the most popular sizes that you will need. The flutes of the pen drill are noticeably different when compared to standard drill bit flutes. This exclusive design eliminates the need to withdraw the bit until the hole has been drilled through. With less clogging, better tip geometry and faster chip extraction, the heat created by the drilling process is dramatically decreased. The deep flute shape clears the chips without repeatedly having to back the bit out during the cut. No vibrations or wandering of the drill bit during the drilling process.
Parabolic flute design eliminating the need to withdraw the bit until the hole has been drilled through
For drilling smooth, precise holes into soft- and hardwood, acrylic and aluminum
Reduced friction by the shape of the outer flute area makes for faster drilling and less heat buildup for longer life
Includes these sizes: 7 mm, 10 mm, 25/64 in, 27/64 in and letter O
Made of European M2-hight speed steel and the shank is hardened twice for longer service life
Overall length is 150 mm (6 In.)