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Milwaukee 3PC Step Drill Bit Set

SKU 48-89-9221

Model Number: MIL48899221

Availability Notice: Availability to purchase does not guarantee immediate stock. Our site displays items we stock along with items we have the access to source for our customers. Some items may have extended lead times. Questions about availability? Contact our team before ordering.

MAXIMIZED HOLE-MAKING PRODUCTION EFFICIENCY

Engineered to maximize the duty cycle of your high-speed cordless fleet, the Milwaukee 48-89-9221 Step Drill Bit Set eliminates the standard bottlenecks found in thin-gauge metal fabrication. By utilizing a dual-flute geometry specifically balanced for high-RPM cordless rotation, these bits significantly reduce heat friction—the primary killer of accessory lifespan—while delivering a burr-free finish that keeps production moving without the need for secondary deburring tools.

  • / JAM-FREE PERFORMANCE: Dual-flute design ensures smooth chip evacuation for up to 2X faster hole times in professional-grade steel and plastic.
  • / RAPID STRIKE™ TIP: Provides immediate, accurate starts without walking, preserving the integrity of your workpiece and extending bit tip life.
  • / CORDLESS OPTIMIZATION: Specifically tuned for high-speed drilling, delivering up to 50% more holes per battery charge than competitive bits.
  • / LASER-ENGRAVED MARKS: High-visibility reference points allow for precise depth control and hole sizing while the bit is in motion.
  • / SECURE-GRIP™ SHANK: Three-flat design prevents the bit from slipping in the chuck under high-torque drilling applications, protecting your drill's internal components.
TECHNICAL SPECIFICATIONS
Shank: 3-Flat Secure-Grip
Finish: Black Oxide
Geometry: Dual-Flute Jam-Free
Performance: Optimized for Cordless Drills in High Speed
Bit #1 Range: 1/8" - 1/2" (13 Steps)
Bit #2 Range: 3/16" - 1/2" (6 Steps)
Bit #4 Range: 3/16" - 7/8" (12 Steps)

WHAT'S IN THE BOX

  • / (1) #1 Step Drill Bit 1/8"-1/2" (48-89-9201)
  • / (1) #2 Step Drill Bit 3/16"-1/2" (48-89-9202)
  • / (1) #4 Step Drill Bit 3/16"-7/8" (48-89-9204)

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