







Milwaukee 13/64" COBALT RED HELIX Drill Bit 48-89-2310
MAXIMUM HEAT DISSIPATION FOR STAINLESS AND HARD METAL DRILLING
Drilling through stainless steel, cast iron, or thick structural steel requires a bit that manages thermal energy as efficiently as it cuts. The Milwaukee COBALT RED HELIX™ series is engineered specifically for these high-friction environments where standard high-speed steel bits typically fail. By utilizing a variable helix geometry—starting at an aggressive 35° and tapering to 15°—this bit accelerates chip evacuation to prevent the "heat soak" that leads to premature dulling. The cobalt alloy construction provides the necessary red-hardness to maintain a sharp cutting edge under extreme pressure, ensuring a professional ROI through significantly extended tool life in the most demanding metalworking applications.
- / 135° Split Point Tip: Delivers a precision start on contact and prevents bit walking on hard surfaces, eliminating the need for center punching.
- / RED HELIX™ Variable Flute: Optimized geometry clears material faster to limit heat buildup and maintain edge integrity for up to 10X longer life vs. black oxide.
- / CHIP BREAKER™ Technology: Integrated design breaks up large shavings to reduce friction and further decrease operating temperatures during continuous drilling.
- / 3-Flat Secure-Grip™ Shank: Prevents the bit from spinning in the chuck under high-torque loads, ensuring consistent power transfer and protecting the chuck jaws.
TECHNICAL SPECIFICATIONS
| Diameter | 13/64" |
| Material | Cobalt Alloy |
| Overall Length | 3.75" |
| Flute Length | 2.52" |
| Point Angle | 135° Split Point |
| Shank Type | 3-Flat Secure-Grip™ |
| Application | Hard Metals, Stainless Steel, PVC, Wood |
WHAT'S IN THE BOX
(1) 13/64" COBALT RED HELIX™ Drill Bit (48-89-2310)
Original: $7.47
-65%$7.47
$2.61Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
MAXIMUM HEAT DISSIPATION FOR STAINLESS AND HARD METAL DRILLING
Drilling through stainless steel, cast iron, or thick structural steel requires a bit that manages thermal energy as efficiently as it cuts. The Milwaukee COBALT RED HELIX™ series is engineered specifically for these high-friction environments where standard high-speed steel bits typically fail. By utilizing a variable helix geometry—starting at an aggressive 35° and tapering to 15°—this bit accelerates chip evacuation to prevent the "heat soak" that leads to premature dulling. The cobalt alloy construction provides the necessary red-hardness to maintain a sharp cutting edge under extreme pressure, ensuring a professional ROI through significantly extended tool life in the most demanding metalworking applications.
- / 135° Split Point Tip: Delivers a precision start on contact and prevents bit walking on hard surfaces, eliminating the need for center punching.
- / RED HELIX™ Variable Flute: Optimized geometry clears material faster to limit heat buildup and maintain edge integrity for up to 10X longer life vs. black oxide.
- / CHIP BREAKER™ Technology: Integrated design breaks up large shavings to reduce friction and further decrease operating temperatures during continuous drilling.
- / 3-Flat Secure-Grip™ Shank: Prevents the bit from spinning in the chuck under high-torque loads, ensuring consistent power transfer and protecting the chuck jaws.
TECHNICAL SPECIFICATIONS
| Diameter | 13/64" |
| Material | Cobalt Alloy |
| Overall Length | 3.75" |
| Flute Length | 2.52" |
| Point Angle | 135° Split Point |
| Shank Type | 3-Flat Secure-Grip™ |
| Application | Hard Metals, Stainless Steel, PVC, Wood |
WHAT'S IN THE BOX
(1) 13/64" COBALT RED HELIX™ Drill Bit (48-89-2310)













