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The SGS 66659 is a taper length drill bit built for high-performance drilling in a wide range of materials. Part of the Series 142P, it features a solid micrograin carbide construction with a TX coating for extended tool life and heat resistance. The 135-degree split point reduces thrust and walking at entry, making it well suited for precision work. With an 11/32 inch (0.3268 inch decimal) diameter and a right-hand spiral flute, this bit delivers clean, accurate holes. It is used by machinists, tool-and-die technicians, and maintenance professionals working in production or job-shop environments.
This drill bit is suited for universal material applications including steel, stainless, cast iron, aluminum, and non-ferrous alloys. The 8xD flute-length-to-diameter ratio and coolant-through design support deep-hole drilling where chip evacuation and thermal management are critical. The cylindrical shank with a 10 mm diameter seats securely in standard drill chucks and toolholders. The web-thinned point further reduces cutting forces at entry, which is especially useful in CNC machining centers and manual drilling operations requiring tight tolerance results.
Designed as an OEM-style replacement and high-performance upgrade for taper length drill bit applications requiring a 11/32 inch diameter solid carbide bit with a cylindrical shank. Compatible with standard drill chucks and toolholders accepting a 10 mm shank diameter.
Installation and use should be performed by qualified machinists or tooling technicians familiar with CNC or manual drilling equipment. Ensure spindle and workpiece are secured before engaging the drill. Verify coolant-through lines are clear and supplying adequate flow when using the coolant-through feature, as blocked coolant passages in deep-hole operations can cause premature tool failure. Do not exceed the rated maximum drilling depth of 3.74 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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