Hilt and head high frequency welding, smooth, seamless, full and firm. Woodworking drill tools is a special for rows boring machine, which is rotated in left and right directions. Designed for Medium-duty to light duty drilling in Medium-scale to small-sale industrial manufacturing, ensuring rigorous resistance and good durability. Excellent for both hard and soft wood, good for chipboard, and Laminates. Made from original steel. Not only high hardness, not easy to break, and long service life, Manufacturer: Greabuy