Milwaukee SDS-Max 4-Cutter MX4 Carbide 1-1/8" x 16" x 21" Drill Bit 48-20-3966

$99.00
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OPT SKU
48-20-3966
Milwaukee FLASH SALE - The Perfect Pair! 15% Off Your Bundle of a Select M18 or M12 Tool with Any Accessory
Q126-ML-FS-POS-01

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Milwaukee FLASH SALE - The Perfect Pair! 15% Off Your Bundle of a Select M18 or M12 Tool with Any Accessory
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*Limited quantities available. Valid on in stock items only through 12pm EST 2/13/2026 or while supplies last.
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Milwaukee SDS-Max drill bits provide faster drilling speeds, increased life, and more cordless efficiency. Breaker point pulverize the material leading to up to 20% faster drilling speeds. Rebar guards protect the bit when hitting hard aggregate and rebar leading to longer life. Variable flutes remove the dust out of the hole more efficiently resulting in up to 15% more holes per battery charge. Wide flute entrances lead to faster drilling speeds, while reinforced flutes prevent bit breakage, rendering increased durability in tough concrete applications. The centering tip allows for exact spot drilling. All SDS-Max drill bits meet the ANSI specification for drilling holes for anchor applications and include wear mark indicator when signifying when the bit no longer meets the ANSI spec.
  • Breaker points for up to 20% faster drilling speeds
  • Rebar guards for increased DuraGuard in hard aggregate and rebar
  • Variable flutes for up to 15% more holes per battery charge
  • Reinforced flutes to avoid bit breakage
Chuck FitmentSDS-Max
Length21.0 Inches
Color CodedNo
Case IncludedNo
Etched / Stamped Size IdentificationNo
Recommended Safety EquipmentSafety Glasses
Single / Double EndedSingle
Bit MaterialCarbide Tipped
Shank Diameter (in)1.125
Drilling Depth (in)17
Package Contents(1) SDSMAX 4CT 1-1/8" X 17" X 21" (48-20-3966)
Bit Diameter1-1/8"
Shank StyleSDS-Max
Flute Length (in)3
Bit TypePercussion
More Information
OPT SKU48-20-3966
MPN48-20-3966
UPC/GTIN045242102259
Product TypeSDS-Max Bits
Google CategoryHardware > Tool Accessories > Drill & Screwdriver Accessories
ShankSDS-Max
Diameter1-1/8"
Length21"
Shipping Weight3.00