Wahl 5 Star Detailer Mains Hair Trimmer. The Wahl Detailer is a mains powered professional grade hair trimmer, with a super close cutting zero overlap blade. The Wahl Detailer has a T shaped blade and is made for design work, lines, edging, chipping etc. The Wahl Detailer has a powerful long lasting rotary motor and comes with three trimming guides 1.5mm, 4.5mm and 6mm. Includes Free Blade Adjustment Tool.