Feature 1MAIN USE: Cutting, 3D sag angle, slotting. The non backlash design of the architectural router bit is incisive and smoothly, suitable for trimming, 3D free angle, and slitting. 2FINE WORKMANSHIP: Nano blue coating with heat resistance enables the cutting edge of the router bit to maintain crucial sharpness and lubricity. 3EXCELLENT CUTTING: This router bit works with incisive cutting, smoothly rotation, fast operation, and strong hardness. 4WIDE APPLICATION: This router bit is suitable for wood, MDF, particle board, plywood and other compact panels. 55 SET: There are 5 set router bits in the package of different size that you can use them respectively to meet your different needs.Item Type: Architectural Router Bit Material: Tungsten Steel AlloyProduct Specification: 1/4 x R1.5 (without bearings); 1/4 x R2 (without bearings); 1/4 x R2.5 (without bearings); 1/4 x R3 (without bearings); 1/4 x R4 (without bearings) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List5 x Architectural Router Bit5 x Plastic Box