Insert-ring ratchet wrenches, metric, Stubby design. Standards: ISO 3318 and DIN 3113. Material: high-alloy quality steel. Jaw position: 15o with a narrower head for better accessibility. Ratchet with 12 teeth in the ring for good productivity in application. Action angle 5. Twelve-sided Dynamic Drive profile for longer life of screws and nuts. Convenient changeover button for changing direction of rotation: left/right. Larger and two-sided size indicator for easy recognition. Chrome plated and matte polished for high quality surface.