4–20mm HSS Step Drill Bit – High Speed Steel Cone Drill for Metal, Wood & Plastic

Step Sizes: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm
Material: High Speed Steel (HSS)
Coating: Titanium Nitride (TiN)
Shank Type: Hex Shank
Cutting Direction: Right-Hand Cut

Product Description

The 4–20 mm HSS Titanium Step Drill Bit is manufactured from High Speed Steel (HSS) with a Titanium Nitride (TiN) coating for enhanced hardness, reduced friction, and improved wear resistance. Its step cone design enables drilling multiple hole sizes using a single bit while producing clean, burr-free holes with excellent dimensional accuracy. Suitable for enlarging existing holes or drilling new ones, it delivers smooth cutting performance in sheet metal, aluminium, brass, copper, plastic, acrylic, PVC, and wood.

Suitable Materials

• Mild Steel (Sheet Metal)
• Stainless Steel (Thin Sheet)
• Aluminium
• Brass
• Copper
• Plastic & PVC
• Acrylic
• Fibreglass
• Wood