Value Collection MSC-04475133 Straight Flute Tap 9/16-12

Product Description

The VALUE COLLECTION MSC-04475133 is a bottoming straight flute tap designed for cutting internal threads in through-holes and blind holes where full thread depth close to the bottom is required. Manufactured from high-speed steel with a bright, uncoated finish, this tap produces 9/16-12 UNC right-hand threads. It features 4 flutes for efficient chip clearance and smooth cutting action. The tool measures 3.625 inches overall in length with a thread length of 1.656 inches, and weighs 0.15 pounds. It is suited for general-purpose tapping in ferrous and non-ferrous materials across maintenance, toolroom, and production environments.

This bottoming tap is used when thread engagement must extend to or near the base of a blind hole, making it a common finish tap following a taper or plug tap in a three-tap sequence. The H3 thread limit designation indicates a controlled oversize tolerance suitable for plated fasteners or applications requiring consistent thread fit. Machinists, maintenance technicians, and toolroom operators will find this tap appropriate for manual tapping or low-speed machine tapping setups where precise thread form at depth is critical.

Key Features

• Bottoming chamfer allows threading to the base of blind holes
• 9/16-12 UNC right-hand thread form for standard inch-series fastener applications
• 4-flute configuration promotes chip evacuation and cutting stability
• H3 thread limit for controlled fit, compatible with plating allowances
• High-speed steel construction provides durability across a range of workpiece materials
• Bright, uncoated finish for straightforward inspection and general-purpose use

Compatibility

Designed as a standard bottoming tap for 9/16-12 UNC thread applications in manual tap handles, tapping heads, or low-speed machine tapping operations where H3 tolerance is specified.

Installation Notes

Secure the workpiece firmly before tapping to prevent movement during thread cutting. Use an appropriate cutting fluid or tapping compound for the workpiece material to reduce friction and improve thread quality. Apply consistent, controlled pressure and back off periodically to break chips, particularly in deeper blind holes. Follow applicable shop safety practices and ensure the tap is properly aligned with the pre-drilled hole before beginning the cut.