Features: High Quality Material: The drill locator is made of outer wrapped plastic material and inner hard metal material, which is high density, shock resistant. wear and corrosion, and can be used for a long time. Self-drilling guide hole: The drill locator has a built-in steel drill guide in the inner drill hole to prevent the guide hole from wearing out during drilling, which will lead to a larger guide hole and loss of precision. Multi-size drilling: two drilling aids with different precision are available for your choice, each positioner has six different size drill holes, they are compatible with most tension screws. Wide range of applications: the multi-drilling aid functional for woodworking can be applied to cable railing, furniture making and pr DIY carpentry, installing aluminum and stainless steel deck posts, etc. Specification: Notes: 1. Due to different monitors and lighting effects, the actual color may be slightly different from the picture. 2. Due to manual measurement, please allow 1-3cm deviation.