Ingenious Slant Head Design: Our uniquely designed slant head eccentric drill is perfect for all drilling situations. This innovative feature drastically reduces construction costs and greatly enhances the quality of construction work, making it an perfect tool for professional builders and DIY enthusiasts alike. Exceptional Carbide Material: Our eccentric drill bits are constructed from premium quality carbide. This high-grade material ensures not only precise positioning during drilling, but also significantly reduces wear and tear, thus extending tool life and optimizing performance. Impressive Versatility: Our eccentric drill set is suitable for a wide range of materials, including tiles, glass, hard plastics, cement, concrete, and more. The efficiency and effectiveness of these drill bits are even further enhanced when used along with a water drill, providing unmatched results. Comprehensive Drill Bit Assortment: Our 10-piece drill bit set includes four distinct sizes-1/4 inch (6mm), 5/16 inch (8mm), 3/8 inch (10mm), and 1/2 inch (12mm). This wide size range meets a variety of practical application requirements, contributing to the versatility and functionality of the set. Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you! Colour:Blue Material:alloy Package Contents: 10 * Eccentric Drill Bit(3 pcs each for 6/8mm, 2 pcs each for 10/12mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.