Across the 10.5mm diameter, the Tolsen 75128 penetrates stainless steel and hard alloys. Under high-speed friction, the DIN338 standard body maintains structural form. Total length measures 133mm for deep-hole industrial drilling.
Key Features
- 130° Split Point: 130-degree self-centering tip stops bit walking. Bit stays on target without center punching.
- Black and Gold Finish: Surface treatment reduces friction and heat through lubricity. Bit won't seize in thick steel plates.
- M2 HSS Construction: Industrial-grade high-speed steel for heavy metalwork. Cuts through stainless steel without dulling immediately.
- 87mm Flute Length: Twist geometry clears metal shavings from deep bores. Prevents heat traps during drilling in BD humidity.
Frequently Asked Questions
What is a 130 degree split point drill bit used for?
The 130° split point stops the bit from wandering on metal. It penetrates hardened steel surfaces faster than standard points.
Can Tolsen HSS bits drill through stainless steel?
M2 grade steel handles the heat generated by stainless steel. Using cutting oil helps maintain the edge during high-friction use.
