prewave 3-7mm Adjustable Beard Comb for BT3236 BT3237 BT1217/70 MG Series

Adjustable beard comb 3–7 mm

This replacement comb fits the listed prewave shaver models and provides an adjustable cutting length from 3 mm to 7 mm. It is designed for owners of the BT3236, BT3237, BT1217/70 or MG series trimmers who need a new guide comb. The part supports wet and dry use for shower grooming or dry trimming.

Snap-on installation

The comb clips onto the shaver head without tools and locks into the length adjustment mechanism. Misalignment during fitting can prevent the comb from seating fully, which may cause uneven cutting or the comb to detach during use. Rinse the comb and shaver head under running water after each session to avoid hair build-up that stiffens the slide.

Fixed length range

The comb only delivers lengths between 3 mm and 7 mm, so users wanting stubble shorter than 3 mm or a full beard longer than 7 mm cannot achieve those results with this accessory. It is a single-piece guide with no interchangeable spacers, limiting styling flexibility to the built-in adjustment steps. The part is intended solely as a direct replacement for the original comb supplied with the compatible shavers.