Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
Advertising Disclosure
10 Best metric inserts kits of 2025
Save up to 19% off
Best Choice1
E-Z LOKE-Z Lok Threaded Inserts For Metal; Assortment Kit; Carbon Steel; Metric Internal Threads, M3-0.5, M4-0.7, M5-0.8, M6-1.0, M8-1.25; 50 pieces
9.9Exceptional
-
-
Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
Careful review Our team ensures quality, value, and fit based on real user feedback
Trusted insights AI and human analysis guide your decisions, reflecting real user prioritiesReal users impact
Thousands of users trust our site daily
- Based on millions of stores and reviews
- Shoppers influence our rankings
Analyzing top stores
Value for Money2
BILITOOLSBILITOOLS Thread Repair Kit Metric, 131-Piece HSS Drill Helicoil Repair Kit M5 M6 M8 M10 M12
9.6Exceptional
-
3
KadrickKadrick 520Pcs M2 M3 M4 M5 Threaded Inserts Assortment Kit for 3D Printing Components, Metric Brass Knurled Nuts, Insert by Heat into Plastic Parts
19% Off9.5Excellent
-
4
KtehloyKtehloy 400Pcs Threaded Inserts, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit, Brass Heat Set Insert for Plastic and 3D Printing Components
9.4Excellent
-
5
Orion Motor TechOrion Motor Tech Thread Repair Kit, Metric Helicoil Repair Kit with HSS Drill Bits Thread Inserts Taps Breakoff Installation Tools, Portable Rethreading Tool Kit in M5 M6 M8 M10 M12 Sizes
9.2Excellent
-
-
See Today’s Deals & Prices
6
RustarkRustark 84 Pcs 304 Stainless Steel Metric M3 M4 M5 M6 M8 M10 M12 Wire Thread Inserts Steel Sheath Helicoil Type Screw Repair Sleeve Assortment Kit
9.1Excellent
-
7
ZovfamWire Screw Sleeve Thread Repair Inserts Assortment Kit 304 Stainless Steel Metric M3 M4 M5 M6 M8 M10 M12 Wire Thread Inserts Helicoil Thread Repair Kit 140Pcs
9.0Excellent
-
8
INCLYINCLY 440PCS Threaded Inserts Set with Soldering Tip & Adapter, M2 M2.5 M3 M4 M5 M6 Female Thread Metric Knurled Nuts Assortment Kit，Brass Hardware Nuts for Plastic and 3D Printing Component
13% Off8.9Very Good
-
9
ZovfamWire Screw Sleeve Thread Repair Inserts Assortment Kit 304 Stainless Steel Metric M3 M4 M5 M6 M8 M10 M12 Wire Thread Inserts Helicoil Thread Repair Kit 210Pcs
8.8Very Good
-
10
SEDYMetric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread Restorer
8.7Very Good
-
