Efficient and Easy-to-Use Compact Operation Center Set with Automatic Spring Design for Accurate Starting Point Drilling - Ideal Equipment for Precise and High-Quality Workmanship

Provide an accurate starting point for steel and other solid materials. Allows you to easily mark the workpiece with one hand before drilling which prevents the bit from sliding. Then the automatic spring is loaded at the of the loop to release. The spring pressure can be adjusted by rotating the of the knurled . 100% new and high-quality.