Carbon Steel Countersink Drill Bit for Woodworking, Countersink Chamfer with Hex Key (3-6mm)

• to use:The drill bit is made from carbon steel and countersink is made from good quality 45# steel which ensures a long service life.
• Great drilling performance:The combined drill bit and countersink bit is great for drilling, chamfering, deburring and countersinking.
• Multiple choice:There are 10 sizes of 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 10mm for you to chose.
• Flutes design:The five flutes design provides small chip loads and quicker removal, it can discharge wood sawdust more rapidly and smoothly.
• Widely used:It is suitable for drilling holes on board of low hardness such as wood, plastic and other soft material.

Description: These Drill bits features high quality , great drilling performance, and five flutes design. It is ideal for drilling holes on board of low hardness such as wood, plastic and other soft material. You can chose drill bits at different size to meet your needs. Specifications: Material: Carbon steel(drill bit), 45# steel(countersink) Countersink Flute: 5 Drill 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 × 20mm Quantity: Your choice Package Includes: 1pc(or 1 set) × Countersink Drill Bit 1 × Hex Key Note: There are only 7pcs in 3-10set, and only 4pcs in 3-6set.