ZONADAH HSS Mortising Chisel Set, 4 Pieces Set Woodworking Square Drill Bits Wood Hole Saw with Twist Drill 6.35mm, 7.94mm, 9.5mm, 12.7mm (1/4", 5/16", 3/8", 1/2")

• Durable High-Speed Steel Construction – Crafted from heat-treated high-speed steel (HRC48~50), these square hole drill bits offer excellent toughness and wear resistance, ensuring reliable performance in woodworking applications.
• Efficient Wood Chip Removal – Designed with an extended-length corebit and a U-shaped flute, these mortising chisels facilitate smooth chip ejection, enhancing drilling efficiency and precision.
• Rust-Resistant Black Oxidation Finish – The tip is treated with a black oxidation coating, providing enhanced corrosion resistance and a longer lifespan, even under heavy-duty use.
• Versatile Woodworking Applications – Perfect for use with mortise and tenon machines or mortising attachments on drill presses, these bits are ideal for creating clean and accurate square holes in MDF, particle board, pine, basswood, and other types of wood.
• Four Essential Sizes in One Set – This set includes four commonly used sizes (1/4", 5/16", 3/8", 1/2"), making it a practical choice for carpenters, woodworkers, and furniture makers.

ZONADAH 4-Piece Square Hole Drill Bit Set – High-Speed Steel Mortising Chisels for Woodworking Durable High-Speed Steel Construction – Crafted from heat-treated high-speed steel (HRC48~50), these square hole drill bits offer excellent toughness and wear resistance, ensuring reliable performance in woodworking applications. Efficient Wood Chip Removal – Designed with an extended-length corebit and a U-shaped flute, these mortising chisels facilitate smooth chip ejection, enhancing drilling efficiency and precision. Rust-Resistant Black Oxidation Finish – The tip is treated with a black oxidation coating, providing enhanced corrosion resistance and a longer lifespan, even under heavy-duty use. Versatile Woodworking Applications – Perfect for use with mortise and tenon machines or mortising attachments on drill presses, these bits are ideal for creating clean and accurate square holes in MDF, particle board, pine, basswood, and other types of wood. Four Essential Sizes in One Set – This set includes four commonly used sizes (1/4", 5/16", 3/8", 1/2"), making it a practical choice for carpenters, woodworkers, and furniture makers. Product Description Upgrade your woodworking projects with the ZONADAH 4-Piece Square Hole Drill Bit Set, designed for precision and efficiency. Made from heat-treated high-speed steel (HRC48~50), these mortising chisels offer exceptional hardness and durability. The extended corebit and U-shaped flute design help to clear wood chips quickly, reducing friction and improving cutting performance. Each drill bit is coated with a black oxidation finish to prevent rust, ensuring a longer service life. Compatible with mortising machines and drill press attachments, this set is perfect for cutting clean square holes in MDF, particle board, pine, basswood, and more. Whether you're crafting furniture, cabinetry, or general woodworking projects, this set provides the precision and reliability you need. Specifications Material: High-Speed Steel (HSS) Hardness: HRC48~50 Sizes & Weight: o 1/4" (6.35mm) – 135g o 5/16" (7.94mm) – 140g o 3/8" (9.5mm) – 160g o 1/2" (12.7mm) – 215g Package Includes 1 x ZONADAH 4-Piece Square Hole Drill Bit Set (1/4", 5/16", 3/8", 1/2")