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The GUHRING 9005020027800 is an extra length, high speed steel drill bit engineered for deep hole drilling applications requiring extended reach and precise, consistent results. Built to DIN 1869 standards, this Series 502 bit features a parabolic flute geometry and a web-thinned, tapered web configuration that promotes efficient chip evacuation in demanding cuts. The drill measures 0.1094 inches in diameter with a 5.906-inch overall length and a 3.937-inch flute length, providing a 15xD flute-to-diameter ratio suited for deep bore work. The uncoated high speed steel construction is a high-performance grade appropriate for machinists and tooling professionals working in production or precision job shop environments.
This drill bit is designed for deep hole drilling into aluminum and similar non-ferrous and general-purpose workpiece materials. The parabolic flute profile accelerates chip removal in longer cuts, reducing heat buildup and the risk of chip packing at depth. The straight-cylindrical shank, with a 7/64-inch shank diameter and 50-millimeter shank length, seats securely in standard drill chucks and collet-style toolholders. It is well suited for CNC machining centers, drill presses, and manual machine applications where extended reach into a bore is required.
Designed as an OEM-style tooling replacement or direct application drill for deep hole operations conforming to DIN 1869 standards, compatible with standard drill chucks and collet systems accepting a 7/64-inch straight-cylindrical shank.
Installation and use should be performed by qualified machinists or tooling technicians familiar with rotating cutting tool safety. Ensure the machine spindle is fully stopped and locked out before mounting or changing the bit. Confirm the chuck or collet is properly torqued and that the shank is fully seated to the required engagement depth before beginning a cut. Do not exceed the maximum recommended drilling depth of 3.773 inches without retracting to clear chips.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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