Specification: Product Name: Countersink Drill Bit Set Material: aluminum alloy body/alloy drill Color: gold Size: 24mm body (shown) Size: 1/8x3/8inch, 7/64x3/8inch, 9/64x3/8 Applicable models: hand drill/charger/bench drill, etc. Applicable materials: for hardwood deep holes, for drilling screw holes in wood and sinking the screw head Feature: Bi-directional Quick Release: Can sink holes or drive screws; dual-purpose operation; convenient and simple; can be used in a variety of places Adjustable Depth: Hexagonal screw fixing slot, adjustable as needed, clear scale not easy to wear, countersinking holes more accurately Wide Application: Countersinking Drill Bit Kit is suitable for bench drills; hand drills and conventional electric drills. Ideal for wood; fibreboard; chipboard; plywood; etc Parts List: 1 x Limit Countersinking Drill 2 Pcs of 4-Flute Drill Bits (with center drill) 1 x Hexagonal Wrench 1 x Plastic Ring _x000D_