Feature(may vary by option.)

●QUALITY: Made of heavy duty cobalt high speed steel for strong hitting and clean holes
●Features: Drill, Reamer, Chamfer, Multi-purpose Drilling, High Efficiency, Durability
●EFFICIENT: Quickly replace hexagonal and triangle shanks that can be safely mounted on most pistol drills and drill press
●CONVENIENT: Double-flute spiral groove design for faster, smoother cutting deburrs chip, dust and debris
●118°X Type Opening: Self-centering increases cutting speed and prevents walking

[5 steps (4 12mm)]

[15 steps (4 32mm)]

[9 steps (4 12mm)]

[10 steps (4 22mm)]

Description

Whether you are a DIY project or professional engineering application, the straight flute and spiral flute step drill can easily meet your punching and drilling needs.

Assembled with industrial grade M35 HSS and step drill bits provide the best strength when handling various sheets or surfaces such as metal, wood, plastic, aluminum, or copper.

Product Parameters

*Material: M35 high speed steel

*Cobalt Blade TiAIN Plated

*Specifications:
Spiral groove: 15 steps (4-32mm); 10 steps (4-22mm); 9 steps (4-12mm); 5 steps (4-12mm)

*Range of applications: 1mm thick stainless steel, suitable for processing steel/iron/0.2 inch (5 mm) thick (HRC<30) for drilling holes in materials such as copper/aluminum.

*Note
Prohibit drilling/reaming of solid thick plates and intermediate layers, and avoid drilling in ceramic tiles.
All drill bits have to stay cool during operation or they burn easily!