Fix-A-Thread Thread Repair Insert Refill Kit

131pcs Engine Block Restoring Hand Tool Thread Repair Tool Kit Engine Block Restoring Damaged M5 M6 M8 M10 M12 Sk1008 - Hand Tool Sets - AliExpress

The 14 mm spark plug rethreader kit is used for rethreading damaged spark plug threads in aluminum cylinder heads.

OEMTOOLS 14mm Spark Plug Rethreader Kit

Spark Plug Rethreader Kit M14x1.25 Inserts And M16x1.25 Tap Kit 13pcs M14x1.25 Rethreading Set Thread Repair Tools For - AliExpress

Recoil - Quality Thread Repair Systems

OEMTOOLS M6 - 1 Fix-A-Thread Repair System

65200 Deep Hole Aluminum Head M14x 1.25 Spark Plug Hole Repair Kit

M10 X 1.25 BIG-SERT KIT (5012)

E-Z LOK Thread Repair Kit Includes: M6 x 1 ID, 3/8-16 OD Inserts, Tap & Drill

OEMTOOLS M6 - 1 Fix-A-Thread Repair System