CYCLUS TOOLS snap.in EC 37 – Head tube reamer, diameter 37 mm, code SN.42-S

With this internal cutter, it is possible to prepare head tubes with an internal diameter of 30 mm for mounting a classic headset (with external cups). The new S.H.I.S. (Standardized Headset Identification System) makes it easy to identify the correct cutter for each application. This system consists of: headset type and associated head tube internal diameter (example: EC 34).

S.H.I.S. Legend:

• EC (External Cup) – classic headset with external cups


• ZS (Zero Stack) – semi-integrated headset


• IS (Integrated Standard) – integrated headset

Technical specifications:

• Diameter: 37 mm


• Angle: 20°


• Content: single cutter

Attention: To complete the tool, the support SN.50-W (Art. no. 7202750), the base tool SN.10-W (Art. no. 7202810), and the head tube face cutter SN.50-S (Art. no. 7202850) are also required.