Staedtler Double Hole Metal Sharpener for Pencil and Colored Pencil

Staedtler 510 20BK heavy metal double hole sharpner is for standard-sized blacklead pencils up to 8.2mm with a sharpening angle of 23 for clear and accurate lines
The double hole sharpener is for thick blacklead and coloured pencils up to 10.2mm with a sharpening angle of 30 for broad and soft lines