4-12/20/32mm HSS Step Cone Drill Bit Titanium Hole Cutter 3pcs/Set

Description

Descriptions:
----3Pcs HSS Steel Step Cone Titanium Drill Bit Tool Set Hole Cutter 4mm-12/20/32mm
----Titanium Nitride Coating for Cooler Running, can effectively extend the service life of the drill
----Automatically Deburrs Holes as you Drill. Two-flute Design Gives You Faster, Smoother Cutting.
----3 sided shanks design in order to prevent slippage when in chuck Two flute design provides faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps
----Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, thin iron, aluminum alloy, insulation boards, PVC sheet (thickness below 5MM), etc.
Features:
1. The unique step structure, a variety of standard size drill carve aperture, a box arrived on a ladder drill bit.
2. Without the use of center punch, easy to break, a step drill specifications apply.
3. Deburring, chamfering, expanding the oval hole.
4. Small sway, without leading to use a center punch can carve out a nice aperture.
5. Surface treatment: Titanium.
Package Included:
3× HSS Step Drill Bits