4-32mm HSS Titanium Coated Step Drill Bit with Automatic Center Puncher 4pcs Set

Feature：
HSS Steel Construction - High-speed steel construction for longer cutting edge life even at extreme temperatures.
Titanium Coating - Coated by titanium, this step drill set performs well in heat, corrosion and rust resistance.
Automatic Center Punch - Delivers an automatic, high-impact, spring-loaded strike when pressed against a surface, adjustable cap regulates striking force.
Multiple sizes - The bits set includes three standard step drill bits that have Wide application for 4-12mm， 4-20mm， and 4-32mm.
Meet Your Demands - With the step drill bits we offered, you can process different kinds of diameter holes, which greatly saves you a lot of trouble. Great for metal/wood/plastic countersunk. Suitable for Home DIY, and General Building/Engineering Use.

Specification:
Material: HSS Steel
Coating: Titanium
Step Drill Bit Sizes:
4-12mm（4，5，6，7，8，9，10，11，12mm)
4-20mm（4，6，8，10，12，14，16，18，20mm)
4-32mm（4，6，8，10，12，14，16，18，20，22，24，26，28，30，32mm）

Package includes：
3 * Step Drill Bit
1 * Center Punch