Accurate Drilling: Ensures precise drilling of bolt heads for secure safety wire placement., Durable Construction: Crafted from premium aluminum for superior strength and long-lasting reliability., Versatile Sizing: Accommodates a range of bolts from 3/16" to 5/8" in diameter, catering to various applications., Comprehensive Kit: Comes with two case-hardened threaded bushings for enhanced durability., High-Quality Bits: Includes two 1/16" steel high-speed bits for efficient and smooth drilling.