Value Collection SM0301247 Chucking Reamer Hss 0.1247in

Product Description

The VALUE COLLECTION SM0301247 is a straight-flute chucking reamer designed to finish-ream holes to a precise 0.1247-inch diameter. Machined from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate bore sizing in a wide range of ferrous and non-ferrous workpiece materials. The straight-cylindrical shank seats securely in drill press or lathe chucks. With a 3.5-inch overall length and a 0.875-inch flute length, this reamer is suited for through-holes and shallow blind holes in production and toolroom environments. Right-hand cutting direction follows standard machine-spindle rotation.

This reamer is rated as a dowel pin reamer at the 0.1247-inch dowel pin size, making it appropriate for press-fit and slip-fit dowel applications in fixture building, jig work, and precision assembly. It is not an over- or under-size reamer, so it targets the nominal 0.1247-inch diameter directly. Machinists, toolmakers, and maintenance technicians use this type of reamer in drill presses, lathes, and milling machines where a pre-drilled or bored hole needs to be brought to final tolerance.

Key Features

• 0.1247-inch finished bore diameter, rated as a dowel pin reamer for precise press-fit and slip-fit applications
• High-speed steel (HSS) construction provides hardness and wear resistance across a broad range of materials
• Straight flute geometry suitable for through-holes and short blind holes
• Bright, uncoated finish for general-purpose use without added coating cost
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Right-hand cutting direction for use with standard machine-spindle rotation

Compatibility

Designed as a standard chucking reamer for use in drill presses, engine lathes, and milling machines equipped with a compatible chuck or collet accepting a straight-cylindrical shank.

Installation Notes

This reamer is installed by a machinist or toolmaker into a drill chuck or collet on a drill press, lathe, or milling machine. Always pre-drill or bore the hole undersize before reaming to leave only a small stock allowance for the reamer to remove. Secure the workpiece firmly and use cutting fluid appropriate to the workpiece material to extend tool life and improve surface finish. Inspect the reamer for nicks or wear before use, as a damaged cutting edge will produce an oversized or rough bore.