Chiloskit Industrial M2 HSS Countersink Drill Bits Set for Stainless Steel Meta Aluminum Wood, 90 Degrees 3 Flutes, Bolt Deburring Tool DIY Tool (25mm/1inch)

Made from m2 High-Speed Steel with oxide finish for corrosion resistance; including a padded storage Case to protect the bits from scratching

• These Countersink Drill Bits are beautifully machined to achieve exact countersink holes fit for 90-degree flat heads screws; allows the screw heads to be flush and even with the surface of the material being utilized
• M2 high speed steel countersink bit with high hardness enables long drilling life and efficient drilling performance.
• HIGH DURABILITY - This countersink drill bit set is proudly made of M2 High Speed Steel with excellent hardness of HRC 62-64; it offers superior cutting power, high durability, and good abrasion resistance
• VERSATILE USE: The countersink bits are ideal for bench drill, hand drill (Not recommended), and a conventional electric drill, perfect for stainless steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc.
• The countersink drill bit set is made of industrial grade steel . Durability & Long service life. And we offer a free exchange/refund service within 45 days after purchase. Please feel free to contact us if you have any issues with the product.