Step drill COBALT 4-20mm Milwaukee /48899372/

• New aluminium chromium nitride (AlCrN) coating for 10x longer life compared to a standard MILWAUKEE® step drill bit.
• For steel and stainless steel.
• RAPID STRIKE TIP™: Precise start without wandering and fast drilling - no need to pre-drill material.
• Special tip and step geometry for jam-free drilling - when using cordless tools, there is less risk of the drill bit getting stuck and also deformation of the drilled material.
• Optimised geometry with 2 spiral grooves for 2x faster and smoother drilling.
• Shank with 3 flat edges to prevent the drill bit from coming out of the chuck and to ensure maximum torque transmission.
• Laser engraved size markings for long term visibility.

Step drill COBALT 4-20mm Milwaukee /48899372/