![]() People with it feel compelled to eat non-food items, such as dirt and things that are dangerous. Water soluble, water resistant and coloured (eg for dark surfaces) leads are all available to meet the demands of individual applications. Pica is a condition that mostly affects pregnant people and children. Pica Dry pencils use replaceable univeral graphite leads and feature an integrated sharpener in the quiver cap. Pica Dry marking tools were designed for marking almost all construction surfaces, no matter if dry or wet, glossy or rough, dusty or oily. ![]() Deep hole markers are specifically designed for ease of use when marking inside holes and between materials or fixtures where standard marking pens often suffer from linited access, as well as enabling the user to draw a much finer and more legible line when marking from a gauge or level. Pica were the original inventors of the Deep Hole marker, a concept that has been adapted by other manufacturers since it first arrived on the marketplace. With a product line that is intended to meet the daily demands of trade and industry, Pica place high values on durability, material selection, ergonomics and affordability, but their commitment to innovation has also resulted in a number of "world first" products and unique solutions that have found their way into the hands of construction workers, carpenters, plumbers, electricians, engineers and professiona crafstmen around the world. Still, it is an option you can try as a last resort.Marking tools may be something of an afterthought for many tool manufacturers, but Pica have concentrated soley on producing the best pens and pencils for professional trade users since the company was established. Leads are very fragile and can easily break off inside the pencil tip, making the jam even worse. It can lead to poisoning, intestinal damage, dental problems and more. Please note however that we don’t recommend trying this unless you have no other options. According to the National Autism Center, pica is the abnormal craving for non-food items such as paint, dirt or clay. The Pica Classic stonemason pencil is a universal professional marking tool with high breaking resistance making it suitable for use on walls, metals. Lastly, if all else fails you can try using a piece of lead. If you strip off the paper or plastic of the twist-tie, the inner wire should be just the right size for clearing out a lead jam in a 0.5 mm or larger pencil. If you don’t have a mechanical pencil with a clean-out rod, see if you have any spare twist-ties-like the kind used to tie bread bags or garbage bags closed. Even if the eraser doesn’t fit in any of your mechanical pencils, you can still keep it on hand for clearing lead jams. We also have a number of eraser refills that come with a clean-out rod included. Clean-out rods are generally interchangeable, so if any of your mechanical pencils have one, you can probably use it for all of them. You can find all of our mechanical pencils with clean-out rods included here. ![]() Some pencils come with a specialized wire called a “clean-out rod” mounted to the underside of the eraser. You’ll need something like a long, stiff wire that you can stick into the tip of the pencil.
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