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Red and black metal thread chaser set in case, 8.66in wide

VEVOR

VEVOR 61-Piece Thread Chaser Set UNC UNF Metric HSS 8.66in

SKU CH-8GYP-A2KBP

A 61-piece thread chaser set restores UNC, UNF and metric threads with 28 taps, 28 dies and three thread files made from heat-treated HSS steel at HRC 55-62

  • TypeOther Appliances
  • Width8.66
  • 61-piece kit restores damaged threads with 28 taps and 28 dies
  • HSS steel hardened to HRC 55-62 resists corrosion for lasting durability
  • UNC UNF Metric standards covered in one set for broad compatibility
  • Color-coded taps and dies enable quick visual size identification
  • 66in compact case keeps all tools organised and portable

61-Piece Thread Restoration Kit

The VEVOR thread chaser set provides 61 precision-engineered pieces for repairing damaged threads on fasteners and bolt holes. It includes 28 taps, 28 dies, and three thread files covering UNC, UNF, and metric standards. Color-coded components allow quick visual identification during automotive or mechanical repairs. The kit arrives new in a storage case with a user manual.

For Mechanics and DIY Thread Repair

This set suits technicians and enthusiasts who need to restore existing threads on cylinder heads, engine blocks, and rusted fasteners without cutting new threads. The heat-treated steel construction with HRC 55-62 hardness delivers corrosion resistance and durability for repeated use. Buyers requiring a tap and die set for creating fresh threads in unthreaded holes should consider a different tool kit.

HSS Construction at HRC 55-62

The high-speed steel material hardened to 55-62 Rockwell C determines whether this restorer withstands the torque needed for stuck automotive fasteners. This hardness level supports cleaning and chasing threads in steel and iron components without premature wear. Verify that the UNC, UNF, and metric thread profiles match the specific fasteners you intend to service.

Highlights

  • 61-piece kit restores damaged threads with 28 taps and 28 dies
  • HSS steel hardened to HRC 55-62 resists corrosion for lasting durability
  • UNC UNF Metric standards covered in one set for broad compatibility
  • Color-coded taps and dies enable quick visual size identification
  • 66in compact case keeps all tools organised and portable

Specifications

TypeOther Appliances
Width8.66

Questions about this item

Will the HSS 55-62 HRC taps and dies clean threads on older mild-steel bolts without stripping them?

Yes. The heat-treated HSS material at 55-62 HRC is harder than typical mild-steel fasteners, so the 28 taps and 28 dies chase and clean existing threads on older bolts and bolt holes without cutting new threads or damaging the base metal.

How can I verify the thread files are restoring the correct pitch on a cylinder head after use?

Run the appropriate thread file across the repaired threads; the file should glide smoothly without binding. Then test-fit the matching UNC, UNF or metric bolt — it should thread in by hand through the full depth, confirming pitch and diameter are restored.

Does the 61-piece kit include a tap wrench and die stock, or must I buy them separately?

The package lists only the 61-piece thread chaser set and a user manual. Tap wrenches, die stocks or handles are not included, so you will need to supply those separately to drive the taps and dies.

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