ProMaxx Tools ProDrill Gold Cobalt Drill Bit

The ProMaxx Tools ProDrill Gold Cobalt Drill Bit line is machine-shop-grade drilling tooling. It is made from USA M42 cobalt and designed for technicians who need to drill hard metals quickly and accurately. These cobalt drill bits work well on titanium, boron steel, ultra-high-strength steel and stainless steel. They are also well suited to drilling out broken exhaust studs and bolts.

Key Features:

• M42 cobalt construction: Machined from USA M42 cobalt for heat resistance and long cutting life in hard materials.
• Hard-material capability: Cuts steel up to Rockwell Rc55, which the manufacturer states is twice the hardness range of other drill bits.
• Micro-edge, split point tip: A 135° split point with four cutting edges stays on center, reduces walking and starts penetrating quickly.
• Efficient cutting geometry: A thin web speeds up drilling and clears chips cleanly. The short length helps in tight spaces.
• Precision tolerances: Manufactured to tight tolerances. The manufacturer states they meet or exceed most tooling specifications, including aerospace.

Tips for Use: Bump the drill repeatedly to establish a center point and prevent walking. Use drilling and tapping fluid to keep the bit cool and help it cut. Follow the recommended RPM for the material.

ProDrill Gold bits are a durable, accurate choice for automotive repair, fabrication and general metalworking.