3/8" SHOCKWAVE Impact Duty™ RED HELIX™ Titanium Drill Bit
3/8" SHOCKWAVE Impact Duty™ RED HELIX™ Titanium Drill Bit
48-89-4621
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Regular price
$14.95
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$14.95
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$8.69
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Milwaukee 48-89-4621 — Product Description
The Milwaukee 48-89-4621 is a 3/8" SHOCKWAVE™ Impact Duty RED HELIX™ titanium drill bit, designed for heavy-duty drilling in metal, wood, and plastic, especially when using impact drivers or high-torque drills.
This is one of the larger SHOCKWAVE bits you’ve listed so far, used for bigger clearance holes and structural fasteners.
Key Features
- Impact-rated (SHOCKWAVE™) – built for drills and impact drivers under high torque
- RED HELIX™ flute design – variable helix (35° → 15°) improves chip removal and reduces heat buildup
- QUAD EDGE™ tip – four cutting edges for faster starts and cleaner cutting
- 135° split point – reduces walking and improves accuracy
- Titanium coating (TiN) – up to ~3× longer life vs standard black oxide bits
- 1/4" hex shank – quick-change compatible for impact drivers
Specs
- Size: 3/8" (0.375")
- Shank: 1/4" hex
- Material: Titanium-coated high-speed steel
- Overall length: ~4.6"
- Use: Metal, wood, PVC, plastics
- Pack: Typically sold individually
Best Uses
- Large pilot holes for anchors and structural fasteners
- Metal stud and sheet metal drilling
- Wood framing and heavy construction
- Electrical/HVAC installs with larger conduit needs
- High-torque drilling with impact drivers
Bottom Line
The 48-89-4621 is essentially a heavy-duty 3/8" impact-rated drill bit:
- Much stronger under torque than standard jobber bits
- Designed for fast chip evacuation and cooler cutting
- Built for jobsite durability with impact drivers
- One of the larger “workhorse” sizes in the SHOCKWAVE lineup

3/8" SHOCKWAVE Impact Duty™ RED HELIX™ Titanium Drill Bit
$14.95