C.K T3016 SET HSS-Co Step Drill Bit Set 4-12 mm, 4-20 mm, 6-32 mm (3 Pieces)

The C.K T3016 SET stands apart with its three HSS-Co step drills, each engineered for clean, burr-free holes in sheet metal and other thin materials. The cobalt alloy and titanium nitride coating provide the heat resistance needed for stainless steel, while the split point and 3-flat shank ensure accurate starts and a secure grip in the drill chuck.

Highlights

• Three step drills cover a combined range of 4–32 mm
• HSS-Co with TiN coating for durability and reduced friction
• Split point for precise, low-pressure starting
• 3-flat shank prevents slipping in the chuck
• Supplied in a robust metal case

In daily use

Each drill steps in 2 mm increments, allowing you to enlarge holes gradually without changing bits. The 4–12 mm and 4–20 mm drills have 9 steps, while the 6–32 mm drill has 14 steps. Recommended for material thickness up to 4 mm in sheet metal, plastics, non-ferrous metals, and stainless steel.

Full specifications

• Drill bit material: HSS-Co (High Speed Steel with Cobalt)
• Coating: Titanium Nitride (TiN)
• Number of pieces in set: 3
• Drill 1 model: T3016 01, diameter range: 4–12 mm, number of steps: 9
• Drill 2 model: T3016 02, diameter range: 4–20 mm, number of steps: 9
• Drill 3 model: T3016 03, diameter range: 6–32 mm, number of steps: 14
• Step increments: 2 mm
• Shank type: 3-Flat Shank
• Point type: Split Point
• Recommended max material thickness: 4 mm
• Suitable materials: Sheet metal, plastics, non-ferrous metals, stainless steel
• Case material: Robust metal

Final note

The C.K T3016 SET is a practical choice for electricians, plumbers, and metalworkers who need a reliable step drill set in a protective case.