Milwaukee Set of 3 Step Cutters with Standard Shank – 48899399

Milwaukee step-drill bits with standard shanks
are ideal for drilling into many materials, such as ferrous and non-ferrous sheet metal, profiles, and tubes; copper, brass, and aluminum; stainless steel; and plastic, with a maximum material thickness of 4 mm.
Designed for a wide range of professional applications, such as electricians drilling panels and boxes for cable entry, plumbing and HVAC for access holes for piping and installations, metal fabricators for various hole sizes and enlarging holes, automotive technicians for cable installation holes (cell phones, antennas, and rerouting electrical cables), and maintenance technicians for various applications requiring different diameters and hole enlargement.

Compared to drilling with conventional bits, Milwaukee step drills
are extremely precise, leaving no burrs and preventing wobble that could damage the material by warping the surface—drilling and deburring all in a single step.
This steel product is custom-designed with a black obsidian coating for extended durability—up to four times longer than standard step drills—and optimized for use at high speeds with cordless tools, ensuring a secure shank grip on the chuck to guarantee maximum torque transfer.

The cutters are equipped with a centering tip to prevent drilling through the material, with laser-engraved diameters for better visibility even over the long term. Its optimized 2-flute geometry with a very sharp edge makes it up to 2 times faster.
To ensure maximum tool life, we recommend using a coolant/lubricant.

The Milwaukee 48899399 set contains 3 step cutters in the sizes 4–12 mm/1, 4–20 mm, and 6–35 mm, packaged in a convenient plastic case.

Product code 48899399