Usage Tips:Keyhole Router Bits Set, a comprehensive collection of 1/4 Inch Shank Tools including 6 pcs with variations in diameter such as 1/4, 5/16 , 3/8, 9/16, 1/2, and 5/8 Inches. This router bit set is ideally built as an exemplary solution for wood hex bolt T-track slotting and milling cutters set. Good for professionals and DIY lovers alike. Formulated with C2 carbide inserts, this cutter set ensures unmatchable longevity with superior finish. professional router bits set exhibits high resistance to heat and abrasion. Engineered to provide high-quality crafting while serving you for a much longer time period. TOTOWOOD's Router Bit Set is constructed with a solid hardened steel body. Its anti-recoil design ensures precision and smooth operation. The are razor-sharp and can be trimmed, polished which enhance their performance and provide a clean cut every time. Diversify your woodworking projects with 6-piece Router Bit Set. Capable of making a broad range of T-slots or keyhole slots. Compatible with various types of materials such as solid wood, particleboard, MDF, plywood, and more, adding versatility to your toolkit. Made for portable and desktop woodworking engraving machines, Keyhole Router Bits Set is painstakingly optimized. Please refrain from using them in electric drills or drilling machines to ensure their efficient performance and prolonged service life. Colour:Photo Color Material:Metal Package Contents: 6 x Hole cutter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.