MILWAUKEE THUNDERBOLT COBALT DRILL BITS PORTABLE
MILWAUKEE THUNDERBOLT COBALT DRILL BITS PROFESSIONAL

Some argue that the standard 118-degree point is wrongly assumed to be a good compromise for general-purpose drilling in a variety of different metals. Drawing from the professional drilling industry, Milwaukee has chosen to go with a more advanced split drill point and flatten the angle out to 135°. In the past, drill point standards have been accepted based on precedent, rather than logic and design innovation. Because all tested bits shared the same 135° split-tip, we attributed the speed gains to the chip breaker. With Milwaukee cobalt bits we drilled through 1/2-inch plate steel in 30% less time than with other cobalt bits. I was really impressed with the smooth cutting action. In a test of the variable helix design at the PTR Labs, we were able to repeatedly bore 1/2-inch holes over 5-inches deep in pressure-treated pine without any binding or argument from the bit. Quicker waste removal reduces friction and heat that dulls bits and leads to binding and the despicable experience of snapping off a drill bit in your workpiece. Designed with a Variable Helix that includes an aggressive 35 Helix Angle which ends at 15, the Cobalt bits with RED HELIX provide Rapid Chip Removal limiting heat buildup to Stay Sharper Longer. The design pulls waste out of the hole at a quicker rate and with fewer rotations of the bit. Milwaukee Cobalt RED HELIX Drill Bits are engineered for extreme durability and long life in hard metal applications. These bits start with a tight 35° twist on the helix at the tip and then spread out to 15° at the base. Typical twist drills have a standard helix with the flutes being uniform all the way down the shaft. Not true of both the Titanium and Cobalt Red Helix bits. You can find other cobalt and titanium bits, but this feature is truly innovative. Milwaukee Thunderbolt cobalt drill bits are designed for extreme durability. In my opinion, here lies the real genius of this tool. Innovative heavy duty tools built to perform through the toughest conditions. Milwaukee Red Helix Bits: Design and Innovation Variable Helix Sharpen these bits, and you lose the benefits of the titanium coating. Bits with a titanium coating are better for general purpose drilling in softer surfaces since the coating is only on the surface. This means you can sharpen these bits without losing any performance. The Milwaukee Thunderbolt Black Oxide bits are effective for drilling on curved surfaces and require less effort to drill through metal, wood and PVC. Despite this, cobalt (really a steel alloy with 5-8% cobalt) works better for drilling metal due to its high resistance to the massive heat generated when drilling through highly abrasive materials.Ĭobalt bits are great for high production rates as the cobalt is found throughout the entire material.

They also do better resisting to corrosion. The Thunderbolt web features a thicker core than a standard drill bit, which provides ultimate strength and protects against side-load breakage. Milwaukee Thunderbolt Cobalt coated drill bits are designed for extreme durability and long life.

MILWAUKEE THUNDERBOLT COBALT DRILL BITS PORTABLE

Effective for drilling on curved surfaces, Milwaukee Thunderbolt Cobalt bits require less effort to drill through stainless steel, high alloy steel and cast iron, and are highly recommended for use with portable drills.It’s worth noting some pros and cons of both materials. TiN-coated drill bits are actually harder than cobalt and more slippery to reduce friction. Thunderbolt Cobalt Drill Bits Model Number: 48-89-2303.

The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX that includes an aggressive 35 Helix Angle which ends at 15. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The drill bits have QUADEDGE TIP to decrease heat buildup and drill. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX that includes an aggressive 35 degree Helix Angle which ends at 15 degree. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage. Drill Bit are engineered for extreme durability and longer life in hard metal applications. 48-89-2201 Milwaukee 1/16 THUNDERBOLT Titanium Coated Drill Bit. Milwaukee® Thunderbolt® Cobalt drill bits are designed for extreme durability and long life in specialty applications. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX that includes an.

Milwaukee thunderbolt cobalt drill bits