Twist drill bit with straight?shank, sharp spiral groove. Used widely to drill the metal and marble, is easy to install. Sharp and twisted flute will make the drilling be more easy and effortless. The twist drill bit is used with electrical drilling machine(here is not included).
Product Name: Twist Drill Bit; Weight: 8g
Shank Diameter: 4.3mm/0.17''; Total Length: 73mm/2.87"
Flute Length: 44mm/1.73"; Bit Diameter: 4.3mm/0.17''