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The OSG 300-1770 is a solid carbide chucking reamer designed for precision hole finishing in general machining applications. Manufactured to wire gauge size 16, it produces a finished bore diameter of 0.1770 inches with a tight tolerance of +0.0001 to +0.0004 inches, making it suitable for close-tolerance fits. The straight flute geometry and right-hand cutting direction are well suited to through-hole and blind-hole reaming in a range of ferrous and non-ferrous materials. With an overall length of 2.75 inches and a flute length of 0.875 inches, this four-flute reamer mounts via a straight cylindrical shank and is driven by a drill press, CNC machining center, or manual chuck setup.
This reamer is intended for production and job-shop environments where consistent bore sizing is required. It belongs to the OSG 300D series and is suited to general machining tasks including fixture work, bearing bores, and dowel-pin hole preparation. The bright, uncoated finish keeps the tool at its ground carbide geometry without added coating variables. It is sold and packaged as a single unit.
Designed as a standard solid carbide chucking reamer for general machining applications requiring wire gauge size 16 bore finishing. Compatible with any machine spindle or chuck that accepts a straight cylindrical shank of matching diameter.
Installation and use of this reamer should be performed by a qualified machinist following standard shop safety practices. Power down and lock out the machine spindle before mounting or removing the tool. Secure the shank fully within the chuck or collet to the manufacturer-specified engagement depth before running the spindle. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality.
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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