11mm M35 High Speed Steel Titanium Hex Twist Drill Bit with 1/4" Shank Coupling Nuts strong and durable for long

strong and durable for long using life

Screw Thread Length : 25mm/1"

non-pollution and high-hardness

High speed steel tool is good for most general purpose applications

- Thread Dia: M4

11mm M35 High Speed Steel Titanium Hex Twist Drill Bit with 1/4" Shank Coupling Nuts strong and durable for long1. The hex drill bit is made of M35 cobalt high speed steel with sharp edge. The surface is coated with titanium, which has higher hardness, better wear resistance and longer service life than ordinary drills. 2. 1 4 " hex shank, which can quickly replace the drill bit, eliminates the frustration of the handle rotation on the chuck, and makes it easier to quickly lock to the chuck. It is suitable for most electric hand drills and drilling machines. 3.