Features: Package includes 12 pencil sharpeners, with sizes of 5/32", 3/16" and 7/32" optional. Made Made of premium material with titanium plating process, strong and durable for long service life. The diamond particles on the drill bit are polished fine and evenly, hard and not easy to wear. 1/8" shank, suitable for sharpening chain saw teeth to extend the service life. Perfect accessory to get rid of sharpening problems once and for all. hand protection. Features: Material: Carborundum + Metal Size?: 5/32" (4.0mm) / 3/16" (4.8mm) / 7/32" (5.5mm) (optional) Stem: 1/8" Quantity: 12 pieces Package size: 18 * 15 * 1 cm / 7.1 * 5.9 * 0.4 inch Package weight: 4.0 mm: 45g / 1.6oz 4.8mm: 56g / 2.0oz 5.5mm: 67g / 2.4 oz Package List: 1 * Sharpener Set (12pcs)