Derwent new desk sharpeners have a durable helical blade which sharpens pencils to super points for fine detail work. Suitable for pencils up to 8mm in diameter. The extendable front plate has a self feeding mechanism which stops when the pencil has reached a superb point. The transparent sliding tray reservoir is easily emptied and each sharpener comes with a desk clamp.

•Available in two sizes.
•Stops sharpening the pencils when sharpened up to 6B