MILWAUKEE Step drill & thunderweb drill bit set 10pcs - 48899350

This 10-piece step & drill bit combo set is engineered for versatile, clean and efficient drilling in a wide range of materials. The step drills are ideal for ferrous and non-ferrous metals, copper, brass, aluminium, stainless steel and plastics, with a maximum recommended material thickness of 4 mm. For best lifetime, use with coolant.

Advantages of Step Drills

• Drill multiple hole sizes with one bit

• Ideal for enlarging existing holes

• More durable than twist drills — thick core resists breakage

• Starts drilling on contact with less walking

• Produces clean, burr-free holes

• Drills plastics without splitting

The Rapid Strike tip ensures fast centering and eliminates the need for pre-drilling.
Special tip and step geometry prevent jamming and material deformation, making them ideal for high-speed cordless tools.

The 2-flute sharpened cutting edge provides up to 2× faster, smoother cutting.
Constructed from custom engineered steel with black oxide coating, these bits deliver up to 4× longer life.

Laser-engraved size markings ensure long-term visibility, and each step is relief-ground to drill and deburr in one pass.
The 3-flat secure grip prevents slipping inside the chuck and ensures maximum torque transfer.