hgudesign Countersink Drill Bit Set, 5 Pieces M2 High Speed Steel with 82 Degree, 3 Spiral Flutes, Tri-Flat Shank, Cutter Bit Countersink in Size 1/4" 3/8" 1/2" 5/8" 3/4" for Wood, Metal,

[M2 High Speed Steel]: Premium M2 HSS material boosts durability, corrosion, and heat resistance, ensuring robust connections between screws and materials. [Precision Cutting]: Engineered for accurate countersink holes with an 82° precision-ground angle and tri-flat shank. [3 Spiral Flutes]: Enhances cutting speed, cleanliness, and smoothness, ensuring flush fastener seating and efficient debris for project efficiency. [Broad Utility]: Perfect for deburring, trimming, enlarging, chamfering, and countersinking in metals, wood, plastic, etc. [Key Sizes]: Set includes commonly 1/4", 3/8", 1/2", 5/8", and 3/4" drill bits.