Feature 1BENDING RESISTANT AND WEAR RESISTANT: The hole sink drill is made of excellent alloy steel through accurate machining of high accuracy equipment, bring good chip removal effect, strong bending resistance, wear resistance, and durable 2DURABLE MATERIAL: The structure design of the drill bit is reasonable, the chamfer is made of No.45 steel, beautiful and durable, with excellent quality and detail 3FAST AND EFFICIENT: A spiral groove with a central bit will quickly drain debris from the hole, which can effectively prevent the accumulation of debris retention and improve drilling efficiency 4APPLICABLE SCENARIO: Countersink drill bit can be used in wood, plastic, soft metal, fiberboard, aluminum alloy screw countersink hole, hole opening, etc. 5WITH FITTINGS: Countersink drill bit kit contains wrenches, hex wrenches, set screws and storage boxes, convenient for your use and storageSpecificationItem Type: Countersink Drill BitMaterial: Alloy steelColor: SilverSize: Approx. 2.8 x 10mm / 0.11 x 0.39inApplication: Used for wood, plastic, soft metal, fiberboard, aluminum alloy screw countersink hole, hole opening, etc. .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 List1 x Limit Countersink Drill Bit1 x Wrench1 x Hex Wrench1 x Set Screw1 x Storage Box