how can i tell if this old do a standard motorcycle spark plug hole 250 cc yamaha motor

You need to find the thread diameter size of your spark plug. Look up what NGK plug will work for your bike and then check this site: https://www.math.uwaterloo.ca/~rblander/NGK.txt Field one of the NGK code is thread diameter size. Then get the appropriate helicoil kit. Remove the head before drilling out and repairing the threads or you will get metal shavings in your cylinder and ruin your engine.

is Inserts stainless steel or steel ?

They are made from Chrome Vanadium Steel. I’ve used my set several times now and it’s a decent quality kit.

Can you supply me with a kit for my stihl chainsaw ms 251 spark plug ?? plug # ngk cmr6h !!

No, I purchased this product, this is not how you contact the seller.

Are the Helicoil made out of Stainless steel?

chrome vanadium, like many hand tools, such as wrenches.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Metric 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

Metric 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

Product ID: 116793808

🔩131-piece comprehensive set

⚙️High-speed steel (HSS) drills & taps

🛠️Universal metric sizes M5-M12

€ 118.30

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Description

🛠️ Fix it right, fix it fast — the ultimate thread rescue kit for pros and makers alike!

BUILT TO LAST - Durable HSS drills and taps engineered for heavy-duty automotive use
ORGANIZED ON THE GO - Robust steel case keeps your tools secure and ready wherever you work
COMPLETE PRECISION TOOLKIT - 131 professional-grade pieces for every thread repair need
VERSATILE APPLICATION RANGE - Perfect for spark plugs, engine bolts, and universal thread repairs
EFFORTLESS THREAD RESTORATION - User-friendly design simplifies rethreading for pros and DIYers alike

The Metric Helicoil Thread Repair Kit is a 131-piece professional set featuring high-speed steel drills, taps, and inserts in universal metric sizes (M5 to M12). Designed for automotive and engine repairs, it restores stripped threads with durable tools housed in a sturdy steel case, making it ideal for both professional mechanics and DIY enthusiasts seeking reliable, long-lasting thread restoration.

Specifications

ASIN	B07MZQK1HP
Best Sellers Rank	#4,765 in Automotive ( See Top 100 in Automotive ) #2 in Thread Metric Inserts & Repair Kits
Brand	SEDY
Customer Reviews	4.6 4.6 out of 5 stars (1,110)
Date First Available	January 21, 2019
Is Discontinued By Manufacturer	No
Item Weight	4.71 pounds
Item model number	13
Manufacturer	SEDY
Manufacturer Part Number	T97381
Product Dimensions	15 x 1.6 x 7.9 inches

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 118.30

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews