2x1PCS HSS Shank Step Cone Drill Bit Tool 4-12mm

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Description:

HSS high speed steel drill bit combined with a titanium coating,capable and durable.
Can effectively extend the service life of the drill.
Two flute design provides faster, smoother and cleaner cuts, each step is clearly labeled with the depth diameter in steps.
Great for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
They also help to enlarge existing holes.

Specification:

Size: (Optional)
5 step 4-12mm, total length 67mm/2.6inch
9 step 4-20mm, total length 77mm/3.0inch
15 step 4-32mm, total length 102mm/4.0inch

Package Includes:(2 Pack)

1 Piece Step Cone Drill Bit

Step Cone Drill Bit ; Shank Step Drill Bit Cone;Cone Tool;Titanium Coated Bit Hole ;HSS Spiral Groove Drill Bit