HSS Titanium Step Drill Bit High Speed Stepped Drill Set Saw Drill Tools Conical Stage Drill For Metal Wood 4-12 4-20 4-32mm

Features:

Brand New and High Quality

Made from high quality HSS steel

Ideal for using to cut holes in a

variety of materials including steel, brass, wood, plastic, etc.

Titanium coated to reduce mit and heat

Heat treated and highly polished.

Drills perfectly round holes in steel, brass, plastic, wood etc.

3 sided shanks design in order to prevent slippage when in chuck

Two flute design drives faster,

smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps

Function:

Deburring, Chamfering,Cutting or expanding holes

Supporting tools: Pistol drill,Hand drill, Charging drill, Bench drill.

(Water injection cooling while working, it can effectively extend the service life of the drill bit,

especially in the case of continuous drilling)

Attention:

Because of the outer diameter of each step of the step drill is gradually expanded