Mechanical pencil leads in a limited range of diameters (0.5 mm, 0.7 mm, or 2 mm) for their own products. Koh-i-Noor makes mechanical colored pencils with replaceable leads in 2.0, 3.15 and 5.6 mm sizes. Mechanical pencil A mechanical pencil (US English) or propelling pencil (UK English), also clutch pencil, is a pencil with a replaceable and mechanically extendable solid pigment core called a "lead" . The lead, often made of graphite, is not bonded to the outer casing, and can be mechanically extended as its point is worn away. Other names include microtip pencil, automatic pencil, drafting pencil, technical pencil, click
Lead (leg) So when an animal is in a rotatory gait, it is called disunited, due to different leading legs in the front and hind. A horse is better balanced when on the correct "lead" of the canter, that is to say, the lead which corresponds to the direction of travel. If a horse is on the wrong lead, it may be unbalanced and will have a much harder time making turns. However, there is an exception to this general rule, the counter canter, or counter-lead, a movement used in upper-level dressage, where a horse may be deliberately asked for what would