The 1 mm Cobalt RED HELIX Twist Drill Bit is built for high-performance drilling in tough metals, delivering exceptional strength and long-lasting reliability. Its advanced variable helix design, transitioning from a steep 35° to a refined 15°, promotes fast chip evacuation, reduces friction, and helps control heat for consistent cutting efficiency. The precision-engineered 135° QUAD EDGE split point provides clean, accurate starts without bit wandering, allowing faster penetration and improved accuracy. Featuring a four-edge cutting geometry, the bit produces finer chips for smoother removal, lower temperatures, and extended tool life. A reinforced internal web adds extra durability to resist breakage, while the cobalt coating significantly boosts wear resistance, offering up to ten times longer life than standard black oxide bits—making it a dependable solution for demanding metal drilling applications.
Key Features:
- Cobalt coating offers up to 10X longer life versus black oxide drill bits
- Perfect for twist drilling applications in hard metal
- Ideal for thick metals, stainless steel, black pipe, and clean wood
- For use with for 3-Flat SECURE GRIP shank drills and drivers
- QUAD EDGE Tip stays sharper longer
- 135° split point for precision start no walking
- Thicker Tapered Web increases bit strength and durability
- Variable Helix with 35°-15° flute geometry offers faster material extraction
- Rapid Chip Removal limits heat buildup to stay sharper longer
- 3-Flat Secure-Grip keeps the bit fixed within the chuck
What's Included:
- (2) 48-89-2501 1mm Cobalt RED HELIX Twist Drill Bits
Warranty Information:
- Milwaukee’s warranty and service details can be easily reviewed on the Milwaukee General Warranty Information page.
Specifications:
| Specifications | Details |
|---|---|
| Product Type | Twist Drill Bit |
| Brand | Milwaukee |
| Series | RED HELIX |
| Bit Diameter | 1 mm |
| Material | Cobalt Steel |
| Coating | Cobalt Coated |
| Helix Design | Variable Helix (35° to 15°) |
| Point Angle | 135° QUAD EDGE Split Point |
| Cutting Edges | 4 Cutting Edges |
| Web Design | Reinforced Internal Taper Web |
| Heat Reduction | Enhanced Chip Evacuation & Lower Friction |
| Durability | Up to 10× Longer Life than Black Oxide Bits |
| Applications | Hard Metals, Stainless Steel, High-Strength Alloys |
