To refill your mechanical pencil, start by removing the eraser at the top to access the lead chamber that’s inside. Place 2 to 3 new pieces of refill lead inside, then put the eraser back on the top of the pencil. Do not overload the lead because it could cause jams. Next, click the pencil a couple of times until the new lead advances so you can continue your writing or drawing. Make sure you use the right lead that matches your pencil’s diameter.

When you’re using 0.5 mm lead, it is best for creating finer, more precise lines when drawing or taking notes. It’s popular for artists working on fine sketches or outlines and is also a good option for technical drafting. However, some still prefer using drawing pencils or art markers. The downside is that 0.5 mm lead is more prone to snapping if it’s pressed too hard. 0.7 mm lead is thicker and more durable than 0.5 mm lead. It’s best used for everyday writing and note-taking, where you tend to press harder against the paper.

When you’re choosing the right lead for your mechanical pencil, start by figuring out the size of lead your pencil needs (0.5 mm or 0.7 mm lead). It should tell you on the pencil or on the packaging. Next, choose what type of lead you need for your work. Look at HB lead for standard writing, 2B lead for smoother and darker shading, or H lead for crisper, technical lines for drawing.

Mechanical pencil lead is not actually made of lead. It is made from graphite and polymers (resins) to provide strength and a smooth flow when writing or drawing on paper, sticky notes, day planners or workbooks. The name “lead” is a historical misnomer back when graphite was first discovered and was initially mistaken as a type of lead.