410 stainless steel self drilling screws using range (such as exceed the following scope will appear not to attack, the phenomenon)Diameter #6 (3.5) drill 2 tail specifications guaranteed to carbon steel plate into 2.5mm thick (iron), attack 2.6-5mm thick carbon steel and stainless steel plate to be customized to attack.Diameter #8 (4.2) drill 2 tail specifications guaranteed to carbon steel plate into 3mm thick (iron), attack 3.1-7mm thick carbon steel and stainless steel plate to be customized to attack.Diameter #10 (4.8) drill 3 tail specifications guaranteed to carbon steel plate into 4.5mm thick (iron), attack 4.6-9mm thick carbon steel and stainless steel plate to be customized to attack.Diameter #12 (5.5) drill 3 tail specifications guaranteed to carbon steel plate into 6mm thick (iron), attack 6.1-15mm thick carbon steel and stainless steel plate to be customized to attack.Diameter #14 (6.3) drill 3 tail specifications guaranteed to carbon steel plate into 8mm thick (iron), attack 8.1-15mm thick carbon steel and stainless steel plate to be customized to attack.304 and 316 stainless steel self drilling screws using a range of 304 and 316 of the drill can drill aluminum alloy plate (such as exceed the following scope will appear not to attack, the phenomenon)Aluminum alloy plate drill attack speed is not too fast, too fast temperature is high aluminum scraps easily dissolved, scrap aluminum dissolved will stick in the drill tail screw tooth top, resulting in aluminum scrap is not easy eduction, will appear not to attack into the phenomenon, if speed electric drill speed will be broken phenomenon.Diameter #6 (3.5) drill 2 tail specifications ensure scored 2.5mm thick aluminum alloy plateDiameter #8 (4.2) drill 2 tail specifications ensure scored 3mm thick aluminum alloy plateDiameter #10 (4.8) drill 3 tail specifications ensure scored 4.5mm thick aluminum alloy plateDiameter #12 (5.5) drill 3 tail specifications ensure scored 6mm thick aluminum alloy plateDiameter #14 (6.3) drill 3 tail specifications ensure scored 8mm thick aluminum alloy plate