Alvord Polk 20650 Hand Reamer 0.1181 in Straight Flute Hss

Product Description

The ALVORD POLK 20650 is a straight-flute hand reamer designed for precision hole finishing in metal fabrication, mechanical assembly, and maintenance work. It carries a 0.1181-inch (3.00 mm) cutting diameter, a 1.5-inch flute length, and a 3-inch overall length. Manufactured from high speed steel with a bright finish, this reamer delivers clean, accurate bores in a range of ferrous and non-ferrous materials. The right-hand cutting direction and straight shank make it compatible with standard reamer drivers and tap wrenches. Machinists, pipefitters, and maintenance technicians reach for this tool when a drilled hole needs to be brought to a precise finished dimension.

This reamer is suited for light-duty hand reaming operations where close tolerance hole sizing is required. It performs well in job-shop environments, field maintenance scenarios, and production setups where small-diameter reaming is frequent. The compact 3-inch overall length makes it manageable in confined spaces. Applications include finish-reaming holes in valve bodies, fittings, housings, and structural components where dimensional accuracy is critical.

Key Features

• 0.1181-inch (3.00 mm) cutting diameter for precise small-bore finishing
• Straight flute design provides clean chip evacuation on hand reaming passes
• High speed steel construction offers durability across a range of workpiece materials
• Bright finish reduces surface friction during the cut
• Right-hand cutting direction compatible with standard tap wrench drives
• Straight shank for secure, centered chuck or driver engagement

Compatibility

Designed as a hand reamer for use with standard tap wrenches and reamer drivers accepting a straight shank in the corresponding diameter range.

Installation Notes

Hand reaming should be performed by a qualified machinist or tradesperson familiar with cutting tool operation. Secure the workpiece firmly before reaming to prevent movement that could damage the tool or enlarge the hole beyond tolerance. Apply a suitable cutting fluid to the flutes to reduce heat buildup and extend tool life. Never reverse the cutting direction while the reamer is engaged in the hole, as this dulls the cutting edges.