Set of 6 HSS 90° countersink bits, chamfering drill bits, high precision for deburring and metalworking, various sizes.

【Affordable Packaging】 Our set contains 6 countersink bits (silver), including various sizes you need for everyday use. Simply purchase this inexpensive and affordable set to meet your different drilling needs. 【Complete Sizes】 The sizes of the six countersink bits are: 6.3 mm/0.248", 8.3 mm/0.326", 10.4 mm/0.409", 12.4 mm/0.488", 16.5 mm/0.649", and 20.5 mm/0.807". The sizes are comprehensive to meet your needs for different drilling tasks. You can get it as a set, so have fun DIYing! 【High-Quality Materials】 Our countersink bits are made of high-quality high-speed steel, which boasts extremely high hardness, high wear resistance, and a fine finish. The bit's edge is smooth and rounded, and resistant to high temperatures, rust, and corrosion. 【Science of Design】 This high-quality countersink bit features three cutting edges and a 90° milling angle that effectively breaks and removes burrs without causing unnecessary scratches or dulling. The drill's flutes quickly remove debris generated during drilling, ensuring that drilling quality remains unaffected. 【Wide Range of Uses】 This countersink bit is suitable for machining hard materials such as cast steel and stainless steel guide rails. It is also suitable for use with plastics, wood, thin steel sheets, and other materials with confidence!