Value Collection ATR2605 Taper Pin Reamer 4/0 Hss

Product Description

The VALUE COLLECTION ATR2605 is a taper pin reamer designed for enlarging, finishing, and shaping tapered holes to accept standard taper pins. Built from high speed steel with a bright, uncoated finish, this tool delivers general-purpose performance in metal fabrication, machining, and assembly applications. It is sized for a 4/0 taper pin, with a small end diameter of 0.0869 inches and a large end diameter of 0.1142 inches. The helical flute geometry and right-hand cutting direction promote smooth material removal and accurate hole sizing. Overall length is 2.3125 inches with a 1.3125-inch flute length and a straight shank measuring 0.125 inches in diameter.

This reamer is suited for use in machine shops, toolrooms, and assembly operations where taper pin holes must be precisely sized to ensure secure, repeatable fits. The 1:48 taper rate conforms to standard taper pin specifications, making this tool appropriate for creating or refinishing taper pin holes in shafts, hubs, collars, and similar mechanical components. It is commonly used by machinists and tool-and-die technicians working on both new builds and repair work.

Key Features

• High speed steel construction for durability across a range of general-purpose machining tasks
• Helical flute design promotes smooth cutting action and efficient chip evacuation
• Right-hand cutting direction with left-hand spiral for reduced chatter and improved surface finish
• Bright, uncoated finish suitable for use with cutting fluids or dry in softer materials
• Straight shank at 0.125 inches fits standard drill chucks and collet holders
• Conforms to 1:48 taper rate standard for 4/0 taper pin hole sizing

Compatibility

Designed as an OEM-style replacement and general-purpose taper pin reamer for use in applications requiring a 4/0 standard taper pin fit at a 1:48 taper rate.

Installation Notes

This tool is typically used by machinists in manual or CNC-assisted operations. Secure the workpiece fully before reaming and ensure the tool is centered on the pilot hole. Apply appropriate cutting fluid to extend tool life and improve surface finish. Always wear appropriate eye protection and follow shop safety procedures when operating rotary cutting tools.