Faber-Castell TK 4600 HB mechanical pencil 2mm The classic, familiar and safe Faber-Castell “TK mechanical pencil” for artists and technical drawing professionals: the TK 4600 . Mechanical pencil for writing, drawing and sketching. Hexagonal body with ergonomic grooves. With a grooved grip zone, it fixes the lead by means of a clamping jaw. Its slender and balanced body has its center of gravity oriented towards the tip. Lead firmly fixed by clamping jaw. Includes HB lead. Diameter of the lead: 2 mm in diameter. Refillable with TK 9071 leads in 9 degrees of hardness (4H-3B). Length: 151 mm. Brand: Faber-Castell