Countersink Drill Bit Set 7PCS High Carbon Steel Woodworking Boring Tool with Hex Key for Plastic Metal Wood 3-10mm

Spec:Features: Drill bit is made from carbon steel and countersink is made from good quality 45# steel which ensures a long service life. Combined drill bit and countersink bit is great for drilling, chamfering, deburring and countersinking.There are 10 sizes of 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm and you can choose the one you need.Five flutes design provides small chip loads and quicker removal, it can discharge wood sawdust more rapidly and smoothly. Suitable for drilling holes on board of low hardness such as wood, plastic and other soft material.Specifications: Material: Carbon steel(drill bit), 45# steel(countersink) Countersink Flute: 5Drill Bit Diameter: 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm, 3-10mm(3/4/5/6/7/8/10mm), 3-6mm(3/4/5/6mm)(Optional) Countersink Diameter: 15.8mm Hex Key Size: 55 x 20mm Quantity: Your choicePackage Includes: 1pc(or 1 set) x Countersink Drill Bit 1 x Hex KeyNote: There are only 7pcs in 3-10set, and only 4pcs in 3-6set.

• [Versatile Usage] Combined drill bit and countersink for drilling, chamfering, deburring, and countersinking with ease.
• [High-quality Materials] Drill bit made from carbon steel and countersink from premium 45# steel for long-lasting performance.
• [Multiple Sizes] Includes 10 sizes from 3mm to 10mm, allowing you to choose the fit for your woodworking projects.
• [Wide Application] Suitable for drilling holes in soft materials like wood, plastic, and more, making it ideal for carpentry and woodworking tasks.
• [Efficient Design] Five flutes design provides quick removal of wood sawdust, ensuring smooth and rapid drilling experience.