The original Wera Bit Check 12 Universal 2 887/4 RR 1 x 1/4 inch x 57; 851/1 A PH 1 x PH 1x25; 2 x PH 2x25; 1 x PH 3x25; 800/1 Z 1 x 0.8x5.5x25; 1 x5.5 x Full 25; 1 x 1.2 x 6.5 x 25; 868/1 V 2 x # 2x25; 1 x # 3x25; 1 x # 1x25; tools for rebels: laser tip - laser treated blade tip. A tightly focused laser light creates a sharp surface structure. The laser treatment causes a hardness of traces of up to 1000 HV 0.3. Wera Laser tip claws firmly in the screw head and prevents slipping out of the screw head. For slotted, Phillips and Posidrive. The micro-rough surface bites firmly in the screw head and ensures a secure fit of the screwdriver in the screw. Reduction of the cam-out effect. Reduction of the required contact pressure.