Normally, when you use a mechanical pencil, the lead wears down on the writing side first, so the lead gets progressively scratchier and sharper as you use it. Then, you have to rotate the pencil or just accept that your writing will have an inconsistent width and feel. The innovative Uni Kuru Toga lead advance system
Mechanical Pencils – Page 2 – St. Louis Art Supply
Uni Kuru Toga Mechanical Pencil 0.5 Mm Mechanical Pencil - Uni
Uni Mechanical Pencil, Kuru Toga High Grade Model 0.5mm, Blue
Uni Kurutoga Mechanical Pencil Standard, 0.5mm, Black (M54501P.24)
Writing – tagged mechanical pencils – St. Louis Art Supply
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Uni Kuru Toga Elite Mechanical Pencil Starter Kit with Silver
Uni Kuru Toga Mechanical Pencil, 0.5 mm, Black with Metal Grip
Uni Kurutoga Mechanical Pencil Standard, 0.5mm, Black (M54501P.24
Pilot Uni Kurutoga with Rubber Grip Mechanical Pencil 0.5mm, Black