Lang Tools Metric Thread Restorer Set 15-Piece (M6–M12) with Multi-Pitch File — Black/Grey, USA-Made

Lang Tools 2584 is a 15-piece metric thread restorer set that repairs damaged internal and external threads on bolts, studs, and nuts using seven taps, seven dies and a multi-pitch file in a protective storage tray.

If stripped or corroded threads are stopping a repair or holding job, this compact kit gives you the common metric sizes needed to restore fit and function without replacing fasteners. Designed and manufactured in the USA, the set groups dies, taps and a specialized restorer file in a clear, impact-resistant tray for visible storage and easy transport. The included tools cover the most frequently used metric pitches for automotive, industrial and DIY applications, so you can quickly match a damaged thread and work on-site or in the shop.

Which thread sizes are included and why they matter?

The set contains seven rethread dies and seven matching taps that address the most commonly encountered metric fasteners from M6 through M12. That range covers many small- to medium-diameter bolts and studs used in machinery, automotive systems and household hardware.

• Dies: M6-1.00, M8-1.25, M10-1.25, M10-1.50, M12-1.25, M12-1.50, M12-1.75
• Taps: M6-1.00, M8-1.25, M10-1.25, M10-1.50, M12-1.25, M12-1.50, M12-1.75
• Covers common pitches so you seldom need a special-order tool

How does the restorer file help with odd thread damage?

The metric restorer file is a multi-pitch tool designed to clean and reprofile thread crests and valleys that are rounded or filled with corrosion—tasks a tap or die alone may not fully correct. Use it to pre-shape a damaged area before rethreading to reduce cross-threading and improve final engagement.

• File pitches: 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00
• Allows incremental restoration for unusual or worn pitches
• Makes tap/die cuts cleaner and reduces risk of tool breakage

What’s included for storage, organization, and portability?

The tools come packed in a molded, high-impact styrene tray with a clear cover that snaps shut for transport and shelf display. Each piece has an assigned location so you can inventory at a glance and keep cutting edges protected between jobs.

• Clear cover for quick visual checks and dust protection
• Molded cavities hold taps, dies, and file securely in place
• Compact footprint fits toolbox drawers or a workbench shelf

How should I use this set safely and effectively?

Match pitch and diameter before cutting, apply cutting fluid for lubrication, and back the tool out frequently to clear chips. For internal threads use the correct tap wrench; for external threads, use a suitable die stock and keep pressure square to the fastener to avoid cross-threading.

• Verify pitch with the file or sample fastener first
• Use cutting oil and moderate speed; clear chips often
• Replace severely weakened fasteners rather than attempting repair

Who is this for? This Lang Tools 2584 set is aimed at mechanics, maintenance technicians, fabricators and informed DIYers who frequently encounter stripped metric threads and need a portable, ready-to-use repair kit. It’s especially useful for shops that prefer American-made tooling and anyone who wants a tidy, durable kit that covers M6–M12 sizes and a broad range of metric pitches.