11mm M35 High Speed Steel Titanium Hex Twist Drill Bit with 1/4" Shank Coupling Nuts also called upholstery tacks

also called upholstery tacks

strong and durable for long using life

Material: 430 Stainless Steel

Screw Thread Length : 25mm/1"

- Thread Dia: M4

11mm M35 High Speed Steel Titanium Hex Twist Drill Bit with 1/4" Shank Coupling Nuts also called upholstery tacks1. 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.