7pcs Steel 5 Flutes Countersink Drill Bit Woodworking Chamfer Reamer Tools 3mm10mm w Hex Key

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 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