Description: Made of high quality alloy,table quality, high efficiency work. Abrasion resistance, high-precision grinding technology, superior abrasion resistance. Suitable for wood, acrylic material edge processing, (Not work in metal materials). Sharp blade cutting smooth no burr, no edges, drilling is more efficient. It is essential in the toolbox of a family or a carpenter. Specification: Material: carbide Size: 6 x3.5cm/ 2.4 x 1.38inch Package Includes: 4 Pieces Router Bit(1pc 1*1/4; 1 pc 1/4*7/8; 1pc 1/4*3/4; 1pc 1/4*3/8)