Wera SB 1 38 Piece Tool -Check. Highlights & details. 38 parts. Compact. Mobile. Universal. Description: 28 bits; 1 870/1 socket adaptor (1/4" hexagonal to 1/4" square); 7 manual andpower tool sockets; 1 Rapidaptor bit holder; 1 Wera Bit Ratchet, with drop-forged steel design suitable for the fitting of bits with 1/4" hexagonal headed drive as per DIN 3126-C 6.3 & E 6.3 (ISO 1173), i.e. Wera Series 1 & 4. Can also be used with 1/4" sockets by using the socket adaptor (870/1).