Sirius 3 Piece HSS TiN Step Drill Set

The Sirius 3 Piece HSS TiN Step Drill Set provides a versatile drilling solution for cutting a range of hole sizes without the need to swap bits. Suitable for use in materials up to 4mm thick, each drill produces clean, parallel holes across its specified size range, stepping up in 2mm increments.

The three bits in this set cover a wide spread of diameters — from 4mm through to 30mm — making the set well suited to electricians, sheet metal workers, and contractors who regularly need to cut varying hole sizes in steel, brass, wood, or plastic. The TiN (Titanium Nitride) coating on the HSS construction helps extend cutting life and performance across these materials.

All three bits feature a ¼" hex shank for quick, secure fitment in cordless drills and screwdrivers with hex chuck compatibility. The set is supplied in a plastic storage case to keep the bits organised and protected between uses.

Features and Benefits:
• HSS (High Speed Steel) construction with TiN coating for extended durability
• Three step drills covering 4mm–12mm, 6mm–20mm, and 6mm–30mm ranges
• Steps rise in 2mm increments for precise, controlled hole sizing
• ¼" hex shank compatible with standard cordless drills and hex chuck drivers
• Suitable for steel, brass, wood, plastic, and similar materials up to 4mm thick
• Supplied in a plastic storage case

Specifications:
Shank: ¼" Hex
Type: Step Drills
Maximum Material Thickness: 4mm

Contents:
1 x Step Drill 4mm–12mm
1 x Step Drill 6mm–20mm
1 x Step Drill 6mm–30mm