Friction drilling

[1] Friction drilling is commonly used on bicycle frames, heat exchangers, and to create holes for mounting bearings.

[citation needed] Friction drilling uses a conical bit made of very heat-resistant material such as cemented carbide.

The presence of this metal lip around hole edges makes connections stronger.

Bits may include a cutting device that removes the typical "collar" of plastified material that flows upwards, so that an even top surface is the result.

Drilled starter holes may be used to reduce the required axial force and to leave a smooth finish in the bushing’s lower edge.