Patio construction set T 1Compact Wera tool set with the 17 most common screwdriving tools for patio construction. 1 bit holder with variable screw depth limitation, with retaining ring for a secure hold of the bits, 4 spare felt rings, which prevent brush marks on the patio decking, 1 Rapidaptor Stainless bit holder with quick release chuck, 15 Stainless bits in stainless steel design to prevent extraneous rust, Take it easy tool finder: Colour coding in accordance to profile