Features X-Shaped Opening Design: The innovative design minimizes drill bit slippage, ensuring precise and stable drilling for all your woodworking projects Clear Laser Scale Markings: Easily read the diameter with the integrated laser scale, providing accurate measurements for efficient and effective hole punching Versatile Usage for Various Materials: Ideal for multi-plate, density board, and plastic board, this tool meets diverse drilling needs, making it perfect for any DIY enthusiast Durable Alloy Steel Construction: Crafted from high-strength alloy steel, this tool offers exceptional toughness and wear resistance for long-lasting performance Stable Structure for Enhanced Performance: The robust design of the twist drill bit ensures consistent performance and an extended service life, giving you reliable results every time Features: 1、The product adopt X-shaped opening design, effectively reducing drill bit slippage 2、Come with laser scale, the diameter is clear at a glance, the marking is also visible 3、Sawtooth drill bit can be used for multi-plate, density board, plastic board hole opening 4、Made of alloy steel material, poss high strength, high toughn, wear resistance, resistance 5、Twist drill bit come with stable structure, excellent performance and long service life Specification: Item Type: Sawtooth Drill Bit Material: Alloy steel Specification: Approx. 8mm / 0.31in 6.5mm / 0.26in 6mm / 0.24in 5mm / 0.2in 4mm / 0.16in m / 0.12in Package List: 6 x Sawtooth Drill Bit Package List 6 x Sawtooth Drill Bit