CYCLUS TOOLS head tube cutter IS 42/6.9/45°, replacement part. With this head tube cutter, it is possible to prepare head tubes with an inner diameter of 42 mm and a milling depth of 6.9 mm for installing an integrated headset. The angle of the bearing seats is 45°. The cutter allows for creating flat and coaxial bearing seats inside the head tube. The individual cutters have been named according to the new S.H.I.S. (Standardized Headset Identification System) nomenclature. The code indicates the type of headset and the corresponding inner diameter of the head tube, for example EC 34: EC (External Cup), ZS (Zero Stack), and IS (Integrated Standard).

• Diameter: 42 mm
• Milling depth: 6.9 mm
• Milling angle: 45°
• Includes: one single cutter

Note: For a complete tool, it is also necessary to order the head tube cutter holder (item code: 720211) and the conical guide (item code: 720943). Always rotate only clockwise. Use a suitable cutting oil during milling.