Value Collection SM0406840 Chucking Reamer 0.6840 in Hss

Product Description

The VALUE COLLECTION SM0406840 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled holes to a precise 0.6840-inch diameter. Built with a straight flute geometry and a straight-cylindrical shank, this reamer seats cleanly in standard drill chucks and boring heads. It runs with right-hand cutting direction, making it compatible with conventional machine spindle rotation. With a 9-inch overall length and a 2.25-inch flute length, it provides adequate reach for typical through-hole and blind-hole finishing operations. Machinists and toolroom technicians use this reamer to achieve tight dimensional tolerances and improved surface finish in ferrous and non-ferrous workpiece materials.

This chucking reamer is suited for use in drill presses, lathes, milling machines, and CNC machining centers where a precise finish bore is required after initial drilling. It is appropriate for production and maintenance machining environments. The bright, uncoated HSS construction makes it a practical choice for general-purpose reaming where specialized coatings are not required. It fits operations where hole diameter falls within the 0.5000- to 0.6999-inch range, and it is sold individually with a minimum order quantity of one piece.

Key Features

• Reamer diameter of 0.6840 inches for precise hole finishing
• High-speed steel (HSS) construction provides good wear resistance in general machining applications
• Straight flute design suits most standard reaming operations in ferrous and non-ferrous materials
• Straight-cylindrical shank seats securely in drill chucks and collet holders
• Right-hand cutting direction compatible with standard machine spindle rotation
• Bright, uncoated finish — no additional coating to affect dimensional tolerance

Compatibility

Designed as a general-purpose chucking reamer for use in drill presses, lathes, milling machines, and machining centers requiring finish reaming of holes in the 0.5000- to 0.6999-inch diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician. Always power down and lock out the machine spindle before mounting or removing the reamer. Secure the straight-cylindrical shank firmly in a properly sized drill chuck or collet to minimize runout. Use appropriate cutting fluid for the workpiece material and inspect the cutting edges for wear or damage before each use.