TK Fine 9717 Faber-Castell Mechanical Pencil 0.7mm The classic, familiar and safe “TK mechanical pencil” from Faber-Castell for artists and technical drawing professionals. Mechanical pencil for writing, drawing and sketching. The Faber Castell TK-Fine mechanical pencil is especially recommended for precision drawing. With a grooved grip area, it fixes the lead using a clamping jaw. Its slender and balanced body has its center of gravity oriented towards the tip. Lead diameter: 0.7 mm diameter. Length: 145 mm. Brand: Faber-Castell.