Value Collection SM0502000 Chucking Reamer 20mm Hss

Product Description

The VALUE COLLECTION SM0502000 is a straight-flute chucking reamer designed for precision hole finishing in machine shop and production environments. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate sizing of pre-drilled or bored holes to a finished diameter of 20.00mm (0.7874 inches). The straight-cylindrical shank seats securely in a drill chuck or collet holder, and the right-hand cutting direction is compatible with standard machine spindle rotation. With an overall length of 9.5 inches and a flute length of 2.5 inches, it provides adequate reach for common workpiece depths while maintaining rigidity during the cut. Machinists and tool-room technicians are the primary users.

This chucking reamer is suited for use in drilling machines, lathes, and machining centers where a reamed finish-to-size bore is required. It is applicable to ferrous and non-ferrous materials in both job-shop and light production settings. The 20.00mm diameter falls within the 20.00mm to 30.00mm reamer diameter range of this tool series, making it the entry-size selection within that grouping. Typical applications include fixture bores, bearing seat preparation, and close-tolerance pin fits where a drilled hole alone does not meet required surface finish or dimensional tolerance.

Key Features

• 20.00mm (0.7874 inches) finished bore diameter for close-tolerance hole sizing
• High-speed steel (HSS) construction provides hardness and wear resistance across common workpiece materials
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Straight flutes deliver clean chip evacuation in through-bore applications
• Straight-cylindrical shank for direct chuck or collet mounting without adapter
• Right-hand cutting direction compatible with standard machine spindle rotation

Compatibility

Designed as an OEM-style machine reamer for use in standard drill chucks and collet systems that accept a straight-cylindrical shank; confirm shank diameter clearance with the holding device before installation.

Installation Notes

Chucking reamers are installed and operated by machinists in a drill press, lathe tailstock, or CNC machining center. Power down the machine and confirm the spindle is fully stopped before mounting or removing the tool. The workpiece hole should be pre-drilled or bored to an appropriate undersize before reaming — removing too much material in a single reaming pass will compromise finish quality and tool life. Ensure proper cutting fluid is applied for the workpiece material to maintain edge life and surface finish.