Features: Brand new and high quality Preferred diamond materials: Sharpness and wear-resistant | long service life. High manganese steel is integrally formed by impact | strong in earthquakes resistance | not easy to deform. Durable and non-abrasive: This process can firmly fix diamond particles on the substrates and is not easy to fall off, sharpness and more wear-resistant. Universal round handle design: Universal handle type, widely used and firm clamping. Specially developed for cast iron: Durable and non-sanding, greatly improving grinding efficiency. Specifications: Material:Diamond Type:Bullet Tip 10x6mm/ Bullet Tip 20x6mm/ Bullet Tip 8x6mm/ Bullet Tip 25x6mm/ Bullet Tip 30x6mm/ Bullet Head 10x6mm/ Bullet Head 20x6mm/ Cylinder Head 10x6mm/ Cylinder Head 20x6mm/ Cylinder Head 8x6mm/ Cylinder Head 22x6mm/ Cylinder Head 25x6mm/ Cylinder Head 18x6mm/ Bullet Tip 13x6mm/ Bullet Head 13x6mm/ Cylindrical Head 13x6mm/ Bullet Tip 15x6mm/ Bullet Head 15x6mm/ Cylindrical Head 15x6mm Package Includes: 1x Drill Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.