8317 Metric Plug Tap, Hcs, 4mm X 0.70 Thread

The Irwin 8317 is a metric plug tap designed for hand threading work in a variety of materials. With a 4mm diameter and 0.70 pitch, it is ideal for routine maintenance, repair work, and rethreading applications where high accuracy and tolerance thread are not critical. This straight flute tap produces a class 2B thread and is suited to these general-purpose applications.

Plug taps are versatile tools used to cut internal threads in pre-drilled holes. The Irwin 8317 offers efficient chip removal during the threading process, making it a reliable choice for restoring or creating metric threads in common materials.

Features and Benefits

• Straight Flute Design: Flutes are ground to provide rapid chip removal for efficient threading in hand tapping applications.
• Metric Compatibility: 4mm diameter with 0.70 pitch ensures compatibility with many metric fasteners and standard metric hardware.
• High Carbon Steel (HCS): Durable material provides reliable performance for routine threading and rethreading work.
• Class 2B Thread: Produces threads suitable for general-purpose applications where high accuracy and tolerance are not critical.
• Hand Threading: Designed specifically for manual operation in a variety of materials.

Specifications

• Brand: Irwin
• Model: 8317
• Thread Size: 4mm x 0.70 (metric)
• Tap Type: Plug tap, straight flute
• Flutes: 4-flute
• Material: High carbon steel (HCS)
• Thread Class: 2B
• Recommended Pilot Drill: #30 or 1/8 inch

How to Use

• Pilot Hole: Drill a pilot hole using a #30 drill bit or 1/8 inch equivalent to prepare the workpiece for tapping.