The Tolsen 75120 Black and Gold HSS Drill Bit cuts through carbon steel and alloyed metals. M2 grade high-speed steel maintains hardness under high friction during deep boring. With a 130° split point, the bit bites into surfaces without skidding or wandering.
Key Features
- 130° Split Point: Self-centering geometry stops the bit from walking on smooth metal. Bit starts drilling exactly where placed.
- M2 HSS Construction: Grade M2 high-speed steel retains hardness at extreme thermal levels. Maintains sharp edges through repeated metal boring.
- 3-Flatted Shank: Three flat faces provide a mechanical lock within the chuck. Prevents the bit from stalling under high torque.
- Jobber Length: DIN338 standard length provides the necessary reach for standard repairs. Resists snapping despite heavy road dust interference.
Frequently Asked Questions
Is Tolsen black and gold drill bit good for metal?
This M2 steel bit penetrates cast iron, stainless steel, and alloyed metals. High thermal resistance keeps the cutting edge sharp during deep metal boring.
Why does this bit have a 3-flatted shank?
The three flat faces provide a mechanical lock inside the drill chuck. This stops the bit from stalling or spinning when drilling through thick plates.
