Working with thin sheets of sheet metal used in aircraft construction can be daunting and it's essential that technicians use the proper drill bits for drilling small holes and large holes in sheet metal.
Most general-purpose twist drill bit will do a satisfactory job of drilling holes in metal. But, if you will be drilling a lot of holes, or need to drill through hard, abrasive metals like stainless steel or cast iron, it's worth the increased investment for black oxide or a cobalt steel sheet metal drill bit.
Yardstore carries a variety of the best drill bits for sheet metal including cobalt, carbide and high-speed drill bits and extensions for high volume and speed job. These high-quality bits will bore more holes in a variety of materials before becoming dull.
Cobalt drill bits are often the best drill bit for sheet metal and stainless steel because they are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.
High-speed drill bits use is a form of tool steel. HSS (High-Speed) bits are hard and much more resistant to heat than high-carbon steel.
A step drill bit can be used to drill a range of different sized holes with a single bit. A step bit is mainly used for drilling thin material such as sheet metal.
Yardstore carries a variety of aircraft sheet metal drill bits used to drill through metal sold individually or in sets for your convenience.