Crescent Nicholson 21708NN 6" Round Single Cut Bastard File with Handle Engineered for precision material removal and shaping, the Nicholson 21708NN 6-inch round file is a dependable hand tool designed for both industrial and general-purpose use. Constructed from high-carbon steel, this file delivers superior durability and long-lasting cutting performance, maintaining its sharpness even under repeated use on metal, wood, and other hard materials. The bastard single-cut pattern provides aggressive material removal while still offering controlled filing, making it ideal for smoothing irregular surfaces, enlarging round holes, and refining concave contours. Its round shape allows for excellent access into curved or tight spaces, making it particularly useful in metalworking, automotive repair, plumbing, and fabrication applications. Designed with an American pattern, the file features a uniform tooth configuration that ensures consistent cutting action across the entire surface. At 6 inches in length (1.00 inch in working length reference likely erroneous; full tool length standard), it offers a balanced size for precise handling and sufficient reach for detailed work. The durable red handle provides a secure, comfortable grip that reduces hand fatigue and enhances control during prolonged filing tasks. Weighing only 0.200 pounds, the file is lightweight yet robust, making it easy to maneuver with accuracy. Packaged individually on a card, this Nicholson file is convenient for retail display and easy storage in toolboxes or workshops. As part of the trusted Nicholson line?synonymous with quality and performance since 1857?it meets rigorous manufacturing standards for reliability and cutting efficiency. Whether used by professionals in industrial settings or DIYers tackling home projects, the 21708NN delivers the strength, precision, and versatility needed for effective shaping and deburring. Features - 6-inch round file with bastard single-cut pattern for aggressive yet controlled material removal - High-carbon steel construction ensures durability, wear resistance, and long tool life - Ideal for filing circular openings, concave surfaces, and curved contours - Round shape allows access to tight, curved, or recessed areas - American pattern design provides consistent tooth geometry and cutting performance - Red molded handle for improved grip, comfort, and user control - Suitable for use on metal, wood, and plastic materials - Lightweight at 0.200 lb for easy handling and reduced fatigue - Individually packaged on a card for convenient storage and identification - Trusted Nicholson quality built for industrial and general repair applications Specifications - Brand Name: Nicholson - Model Name: Nicholson 21708NN - Part Number: 21708NN - UPC: 037103232007, 037103299031 - Global Trade Identification Number: Not specified - Product Type: File - File Cut: Bastard Single Cut - Shape: Round - Length: 6 in (standard nominal length) - Overall Length: 12.80 in (including handle) - Width: 2.50 in (packaging dimension) - Material: High Carbon Steel - Pattern: American - Individual/Set: Individual - Handle: Yes (Red Molded Handle) - Item Weight: 0.200 lb - Packaging Type: Carded - Number of Items: 1 - Manufacturer: Nicholson - Country of Origin: BR (Brazil) Product Application The Nicholson 21708NN 6-inch round bastard file is designed for use in applications requiring precision shaping and smoothing of curved or circular surfaces. It excels in enlarging holes, refining valve seats, deburring internal edges, and finishing concave joints in metal and wood components. Commonly used in automotive, plumbing, and machine shops, it is also a valuable tool for hobbyists and craftsmen working on detailed metal or wood projects. The high-carbon steel construction and efficient cutting action ensure reliable performance across a range of materials, while the comfortable handle enhances control and safety. With its proven design and durable build, this file is a go-to solution for professionals and DIYers who demand accuracy and longevity in their hand tools.