Mechanical Gear Train Ruling Pen, Battery-Free Precision Drafting Tool, Metal Line & Dot Marker (Style B)

Mechanical Gear Train Ruling Pen, Battery-Free Precision Drafting Tool, Metal Line & Dot Marker (Style B)

• 【Pure Mechanical Gear Drive】Requires no batteries or ink. The stable metal gear transmission draws uniform dashed and dotted lines with consistent speed, significantly improving drafting accuracy.
• 【4 Replaceable Gear Wheels】Switch between solid dots, short dashes, dotted-dash, and special interval lines in seconds. One tool replaces multiple marking rulers for blueprint and leather work.
• 【Adjustable Nib Height】The side knob adjusts stroke depth for various material thicknesses. The metal tip glides smoothly along ruler edges, providing stable without skipping on leather or cardstock.
• 【Durable Stainless Steel Body】Made of thickened stainless steel, this wear-resistant tool features tightly meshing gears and rounded burr-free edges. The compact design is easy to store and carry.
• 【Versatile Professional Tool】Ideal for architectural blueprints, mechanical drafting, leather stitching points, and vintage journals. A highly efficient, high-precision auxiliary tool for craftspeople and designers.