Hertel 72007057 Chucking Reamer 0.0705 in Hss 4 Flute

Product Description

The HERTEL 72007057 is a straight-flute chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it produces accurate, smooth bores at a diameter of 0.0705 inches. The four-flute, right-hand cutting geometry delivers consistent stock removal and surface finish on through or blind holes. With an overall length of 3 inches and a flute length of 0.75 inches, this reamer is sized for close-tolerance work in small-diameter applications. It mounts via a straight-cylindrical shank and is compatible with standard drill chucks and collet holders. Machinists and toolroom technicians working on production or maintenance machining operations are the primary users.

This reamer is suited for light finishing passes on drilled or bored holes in ferrous and non-ferrous materials where dimensional accuracy is critical. It is commonly used in machining centers, drill presses, and manual lathes for hole sizing in the 0.0500 to 0.0999 inch diameter range. Typical applications include instrument components, small mechanical assemblies, and precision fixtures where hole tolerances are tight and surface finish matters.

Key Features

• 0.0705 inch reaming diameter for precise hole finishing in small-bore applications
• High-speed steel (HSS) construction provides durability across a range of workpiece materials
• Bright, uncoated finish suitable for general-purpose metal cutting
• Four straight flutes with right-hand cutting direction for smooth, consistent stock removal
• Straight-cylindrical shank fits standard drill chucks and collet systems without adapters
• Compact 3 inch overall length with 0.75 inch flute length suited to shallow hole finishing

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a drill chuck or collet capable of holding a straight-cylindrical shank, within the 0.0500 to 0.0999 inch diameter reamer class.

Installation Notes

This reamer is installed by a machinist into a drill chuck or collet holder on a drill press, milling machine, or lathe. Ensure the machine spindle is fully stopped and the workpiece is securely clamped before chucking the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and improve bore finish. Reamers remove minimal stock and should only be used after a hole has been drilled or bored close to final size.