Features: A great positioning tool for glass/tile/ceramics/marble drilling, save yourtime and give the accurate position. Adjustable design, the small drill positioning tool is suitable for 4-12mm drill bit. Effort saving design, with comfortable handle with suction caps, this tool can catch flat surfaces well. Greatly improve the accuracy, save-time and convenient for operation. Light in weight, small in size, convenient for you to store and manage, will not take up too much space. brand new and high quality Package Includes: 1x Drill Locator Specifications: Material:Alloy Clamping Range:4-12mm Size:Approx.9.8cm/3.6inches 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.