SERPLEX Extra Pilot Drill Bit, Tapered Drill Bits with 5/16 Round Shank, Counter Sinker 10Pcs Wood Countersink Drill Bit Set, 5Pcs Countersink Drill Bit with 5Pcs Brad Points Set  (Pack of 10)

PREMIUM MATERIAL: This Countersink Drill Bit Set is carefully crafted from #45 Carbon Steel, alloy bit, and robust high-speed steel to ensure maximum hardness and durability. Its exceptional cutting ability gives you a flawless operation every time.COMPLETE SIZE RANGE: This set features 5 distinct sizes: 2.8 x 10mm (7/64 ×3/8 ), 3.0 x 10mm (15/128 ×3/8 ), 3.2 x 10mm (1/8 × 3/8 ), 3.5 x 10mm (9/64 × 3/8 ), and 4.0 x 10mm (5/32 × 3/8 ). Added to this are 5 pilot drill bits and a versatile 10mm hole opener for woodworking applications requiring different hole sizes.HIGHLY ADJUSTABLE: Armed with 5 countersink drill bits of varying sizes, versatile spare pilot bits, and hex wrenches, this set allows for easy adjustment of the countersunk drill bit set and various screw lengths. This level of flexibility makes the set apt for a multitude of DIY tasks.VERSATILE APPLICATIONS: This drill set is your go-to solution for multiple woodworking projects. From softwood, hardwood, fiberboard, and plywood to plastic and PVC, this set effortlessly handles them all. Remember, this set is not suitable for steel boards or metallic surfaces.ESSENTIAL TOOLKIT COMPONENT: Indispensable for both amateurs and professionals, these drill bits are crucial for manufacturing sleek furniture or handling daily carpentry tasks. Their efficiency and precision make them a vital addition to any toolkit.