The Wera 8100 SB2 is a 43 piece 3/8in drive Premium Zyklop Socket Set in a rugged steel case. It features a Zyklop ratchet with a 3/8" drive and 72 fine-pitched teeth, enabling a low return angle of only 5 degrees. The ratchet head pivots freely and can be locked into any position using the side-mounted slide switch, allowing for convenient work in confined and difficult-to-access areas with enhanced hand clearance. Predefined locking positions at 0, 15, and 90 degrees (both right and left) ensure safe working without slippage. The ratchet can also be used as a conventional screwdriver in the 0 position by attaching an adaptor and a bit. The flywheel design ensures rapid screwdriving, and the rotation-symmetric construction of the Kraftform handle with a free-turning sleeve supports quick twisting. The outstanding design of the Kraftform handle fits perfectly into the hand, preventing injuries like blisters. This set includes a 3/8-inch ratchet, 18 metric sockets, 2 Flexible Lock Extensions (short and long), a Sliding T-handle, a Universal joint, a Wobble Extension, an Adaptor, and 18 bits. It combines the features of 5 ratchets into 1 tool and becomes a screwdriver with unbelievable speed in the inline position. The reversible ratchet with 72 fine-pitched teeth works quickly and precisely in confined spaces, clockwise or counterclockwise. The multi-component Kraftform handle fits the shape to the hand for ultimate comfort and high-speed torque transfer.