[Carbide tipped]: Easier, Cleaner and more Durable than HSS. [Free Spinning Collar]: No surface scratches and no marrings. [Quick release]: Quick release Hex shank. No Wobble. [ Features]: Both the blade and the drill bit are replaceable. Try a few holes to make sure it's your desired depth and hole diameter. Once set, you'll get repeatable countersinking. [Wide Applications]: suitable for MDF, Plywood, Non-Ferrous, Chipboard, drywall, woodworking. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:Aluminum Alloy Package Contents: 1 x Tipped Countersink Drill Bits Set with Low Friction Depth Stop 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.