Features: Brand new and high quality Experience efficient and precise woodworking with our 6pcs Square Hole Mortise Chisel Drill Bit Tools. Crafted from high speed steel, these drill bits are durable and resistant to wear, ensuring a long lifespan. Perfect for construction workers, decorators, and DIY enthusiasts, our drill bit set is designed to meet the needs of various users. Whether you're working on construction, installation, or decoration projects, our square hole drill bits will provide you with the convenience and efficiency you need. Unlock endless possibilities with our versatile woodworking drill bit set, suitable for use on solid wood, particle board, MDF, and more. Specifications: Material: High speed steel Size: 5/8 "9/16" 1/2 "3/8" 5/16 "1/4" Package Includes: 6Pcs x Chisel Drill Bit note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!