Sealey Depth Setter Bit Holder Adjustable. Steel adaptor suitable for use with 1/4" Hex bits. Manufactured from carbon steel with aluminium sleeve for added corrosion resistance. Added control provided by magnetic holder. Knurled adjustment and locking ring for depth control. For use when performing drywall installations. Adjustable bit holder creates consistent depth and overdrive reduction. 1/4" Hex(M) - 1/4" Hex(F). Model No. BHDS1. Weight: 0.08kg. Drive: 1/4" Hex(M) - 1/4" Hex(F). Length: 70mm. Nett Weight: 0.073kg.