5-Piece HSS Step Drill Bit Set 4241 High Speed Steel Titanium Coated 3/16-1/2" to 1/4-1-3/8" for Carbon Steel Iron Plate Steel Plate Drilling Bench Drill Pagoda Drill Aluminum Box
5-Piece HSS Step Drill Bit Set 4241 for Carbon Steel Iron Plate Steel Plate

This 5-piece step drill bit set offers a practical solution for drilling multiple hole sizes in carbon steel, iron plate, and steel plate. Made from high speed steel 4241, these bits are suitable for use below 25 degrees, making them a suitable choice for bench drill and pagoda drill applications. The set includes five step drills with size ranges from 3/16-1/2 inch up to 1/4-1-3/8 inch, covering a wide span of common hole diameters. Each bit features a yellow and black surface treatment. The set is available in an aluminium box or an OPP pack, providing storage and organisation options for workshop or job site use. Whether you need to enlarge holes or create stepped holes in metal, this set provides the range and material construction for the task.
Features and Construction

The step drill bits are manufactured from high speed steel 4241, a material intended for use below 25 degrees on carbon steel, iron plate, and steel plate. The yellow and black surface treatment gives each bit a distinct appearance. The five-piece set covers a broad range of hole sizes, reducing the need to switch between multiple bits during a job.
Material and Build
Each step drill in this set is made from high speed steel 4241. This material is specified for use below 25 degrees when drilling carbon steel, iron plate, and steel plate. The bits have a yellow and black surface treatment. The set includes five step drills, each with multiple step sizes to create different hole diameters. The construction is suited to bench drill and pagoda drill use, where controlled drilling is required.
Size and Practical Fit
The set includes five step drills with the following size ranges: 3/16-1/2 inch (3/16, 1/4, 5/16, 3/8, 7/16, 1/2), 1/8-1/2 inch (1/8, 5/32, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2), 1/4-3/4 inch (1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4), 3/16-7/8 inch (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 3/4, 11/16), and 1/4-1-3/8 inch (1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8). The aluminium box set weighs 500 g with a package size of 160 x 120 x 48 mm. The OPP pack version weighs 340 g with a package size of 120 x 80 x 35 mm.
Uses and Placement

These step drill bits are intended for drilling carbon steel, iron plate, and steel plate below 25 degrees. They can be used with a bench drill or pagoda drill for controlled hole creation. The range of sizes makes them suitable for various metalworking tasks where different hole diameters are required.
Event or Professional Use
In professional settings such as workshops or job sites, this 5-piece step drill set provides a range of hole sizes for metalworking. The high speed steel 4241 construction is suitable for use below 25 degrees on carbon steel, iron plate, and steel plate. The set can be used with a bench drill or pagoda drill. The aluminium box option provides a storage case for keeping the bits organised.
Everyday Home Use
For home workshops or DIY tasks, this step drill set offers a way to drill multiple hole sizes in carbon steel, iron plate, and steel plate. The bits are suitable for use below 25 degrees. The set includes five step drills covering sizes from 3/16-1/2 inch to 1/4-1-3/8 inch. The OPP pack version is lighter at 340 g, while the aluminium box set weighs 500 g.
Benefits and Buying Value
The 5-piece set covers a wide range of hole sizes, reducing the need for multiple individual bits. The high speed steel 4241 construction is specified for use below 25 degrees on carbon steel, iron plate, and steel plate. The set is available in two packaging options, each with its own weight and dimensions.
Reuse and Low Maintenance
The step drill bits are made from high speed steel 4241, a material intended for use below 25 degrees. The yellow and black surface treatment is applied to each bit. To maintain the set, store the bits in the supplied aluminium box or OPP pack when not in use. No specific maintenance instructions beyond storage are provided in the source data.
Why Choose This Product
This 5-piece step drill set provides five bits with size ranges from 3/16-1/2 inch to 1/4-1-3/8 inch, suitable for carbon steel, iron plate, and steel plate below 25 degrees. The high speed steel 4241 construction and yellow and black surface treatment are consistent across the set. The aluminium box option offers a package size of 160 x 120 x 48 mm and a weight of 500 g, while the OPP pack option measures 120 x 80 x 35 mm and weighs 340 g.