Description of Titanium Cutter Stainless Metalworking Aluminum
High Speed Steel Drill Bit Set is specially designed for thinner steel bit. 5 Sizes: 16mm/0.6inches, 18.5mm/0.7 inches , 20mm/0.8 inches,25mm/1 inches ,30mm/1.2 inches. With a spring, drill bit won't be stuck while using. High-speed steel and stainless steel hole saw drill, sheet metal reamer for stainless steel, iron, aluminum, wood and various types of pipes. High strength, high precision, especially impact resistance, wear resistance.