7 Pcs Steel Countersink Drill Bit Set with 3mm-10mm with 1 Pc Hex Key for Woodworking Chamfer Reamer Tools Kit

• MATERIAL: made from carbon steel,countersink is made from good quality 45# steel,durable and anti rust;which is anti-impact and tough, great wear resistant.
• ASSORTED SIZE KIT: There are 7 sizes of 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm;which meet your different needs perfectly.
• NOTE: Drilling length can be adjusted for various length screws simply loosening and tightening the setscrews.
• WIDE APPLICATION: Combined drill bit and countersink bit is great for drilling, chamfering, suitable for aluminum, woodhardness less than 25 degrees and plastic, ideal for portable drilling jobs
• ADVANTAGE: Five flutes design provides small chip loads and quicker removal, it can discharge wood sawdust more rapidly and smoothly

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 7 sizes of 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm that meet you various 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: 5 Drill Bit Size (Cutting Edge Diameter*Length): 3*60mm, 4*75mm, 5*85mm, 6*93mm, 7*100mm, 8*110mm, 10*120mm Countersink Diameter: 15.8mm Hex Key Size: 55 x 20mm Package Includes: 7 x Countersink Drill Bits 1 x Hex Key