Value Collection SM0406440 Chucking Reamer 0.6440 in Hss

Product Description

The VALUE COLLECTION SM0406440 is a straight-flute chucking reamer designed to finish-ream drilled or bored holes to a precise 0.6440-inch diameter. Machined from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent dimensional accuracy in general-purpose metal finishing applications. The straight-cylindrical shank seats securely in standard drill chucks or collet holders, and the six-flute geometry distributes cutting load evenly for smooth material removal and a clean bore surface. Overall length is 9 inches with a 2.25-inch flute length. The part weighs 0.33 pounds.

This reamer is suited for machine shop and production environments where holes must be brought to a close-tolerance final diameter after drilling or boring. It is a right-hand cutting tool intended for use in a drill press, milling machine, or CNC machining center running at appropriate reaming speeds and feeds for the workpiece material. Machinists and tool-and-die technicians are the primary users. It is not configured as a dowel-pin reamer or an over/under-size reamer, making it appropriate for standard nominal-diameter finish work.

Key Features

• 0.6440-inch finished bore diameter for close-tolerance hole finishing
• High-speed steel (HSS) construction provides toughness across a range of workpiece materials
• Six straight flutes distribute cutting forces evenly and promote smooth bore finish
• Right-hand cutting direction compatible with standard machine rotation
• Straight-cylindrical shank fits standard drill chucks and collet holders without adapters
• Bright uncoated finish suits general-purpose applications where coating is not required

Compatibility

Designed as a general-purpose chucking reamer for use in drill presses, milling machines, and CNC machining centers equipped with a drill chuck or collet holder sized for a straight-cylindrical shank in the 0.5000-to-0.6999-inch diameter range.

Installation Notes

Install and service reaming tools only with the machine powered down and spindle locked. Secure the shank fully in the chuck or collet and verify runout before cutting. Use appropriate cutting fluid for the workpiece material to extend tool life and improve bore finish. Follow shop safety practices and applicable OSHA machine-guarding requirements when operating rotating cutting tools.