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1. #MILWAUKEE THUNDERBOLT COBALT DRILL BITS DRIVER#
2. #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. Designed with a Variable Helix that includes an aggressive 35 degree Helix Angle which ends at 15 degree, the Cobalt bits with RED HELIX provide Rapid Chip Removal. I was really impressed with the smooth cutting action. Milwaukee Cobalt RED HELIX Drill Bits are engineered for extreme durability and long life in hard metal applications. 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. The design pulls waste out of the hole at a quicker rate and with fewer rotations of the bit. Black Oxide Drill Bits ENHANCED TAPERED WEB strengthens the bits core VARIABLE HELIX Design for rapid material. The tapered drill bits feature a new ENHANCED TAPERED WEB that strengthens the bits core to increase flute durability. These bits start with a tight 35° twist on the helix at the tip and then spread out to 15° at the base. 19.

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. The set is organized in a customizable accessory case designed for use in PACKOUT. MILWAUKEE® RED HELIX Titanium Drill Bits provide up to 5X life vs.

#MILWAUKEE THUNDERBOLT COBALT DRILL BITS DRIVER#

You can find other cobalt and titanium bits, but this feature is truly innovative. Great prices on a Milwaukee 48-89-2304 7/64 Milwaukee Thunderbolt Cobalt Drill Bits and other Milwaukee drills & driver accessories with fast shipping. The MILWAUKEE® 23PC SHOCKWAVE RED HELIX Titanium Drill Bit Set has QUAD EDGE tips that stay sharper longer. In my opinion, here lies the real genius of this tool. 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. 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 MILWAUKEE® RED HELIX™ Cobalt 7/64" Drill Bit is engineered for extreme durability and longer life in hard metal applications.