20mm Square Hole Drill Bit High Carbon Steel Hollow Chisel Mortise Bit for Woodworking Efficient Chip Discharge

• Premium Bearing Steel Construction: Forged from high-quality bearing steel, this square hole drill bit boasts exceptional hardness and longevity, thanks to comprehensive heat treatment.
• Efficient Chip Discharge: Featuring a U-shape design with long chip drain grooves, it facilitates smooth wood chip removal, significantly enhancing drilling efficiency.
• Innovative U-Shape Design: The unique U-shape not only aids in chip disposal but also ensures a smoother, more controlled drilling experience.
• Universal & Stable Handle: The drill bit features a universal handle shape with circular designs at the end, ensuring a firmer grip and more stable clamping during use.
• Enhanced Drill Sleeve Design: The drill sleeve's design evenly distributes force, offering robust defense against initial cracking and guaranteeing long-term durability.

Feature: 1. The bit is forged by bearing steel, with high hardness and long service life after overall heat treatment. 2. U shape long chip drain grooves design, facilitate wood chip discharge, improve the efficiency of drilling. 3. Drill sleeve designs, the force of the drill sleeve edge is in a plane, effective to avoid the situation of cracking at the beginning of use. 4. Universal handle shape, circular designs at the end of the drill, so as to making clamping more stable. 5. Suitable for density board, medium fiber board, particleboard, wood and other wood products, suitable for square hole drilling machine, square tenon machine. Specification: Condition: Brand New Item Type: Square Hole Drill Bit Model: 20 mm Material: Bearing Steel Color: As Pictures Shown Weight: Approx. 363.0g Application: Suitable for density board, medium fiber board, particleboard, wood and other wood products, suitable for Square hole drilling machine, Square tenon machine Package List: 1 x Square Hole Drill Bit Note: 1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.