What is the V-COIL Rapid Kit UNC 1/4 – 1.5D used for?

It is designed for quick and precise repair of damaged or worn UNC threads, reinforcement of low-shear materials, and recovery of rejected parts.

What does 1.5D mean for thread inserts?

The insert length equals 1.5 times the nominal thread diameter. It’s the standard size for most general repair applications, balancing strength and practicality.

How does the Rapid system work?

The Rapid system features a 1/4'' hex drive for use by hand or power tool. It allows quick installation of thread inserts without manual alignment.

Can I reorder replacement parts or inserts?

Yes, all components such as inserts, drills, and inserting tools are available individually from VÖLKEL.

Which materials can I repair with this kit?

Ideal for materials with low shear strength like aluminum, copper alloys, or die-cast zinc, but also suitable for strengthening steel threads.

What is the V-COIL Rapid Kit UNC 1/4 – 1.5D used for?

It is designed for quick and precise repair of damaged or worn UNC threads, reinforcement of low-shear materials, and recovery of rejected parts.

What does 1.5D mean for thread inserts?

The insert length equals 1.5 times the nominal thread diameter. It’s the standard size for most general repair applications, balancing strength and practicality.

How does the Rapid system work?

The Rapid system features a 1/4'' hex drive for use by hand or power tool. It allows quick installation of thread inserts without manual alignment.

Can I reorder replacement parts or inserts?

Yes, all components such as inserts, drills, and inserting tools are available individually from VÖLKEL.

Which materials can I repair with this kit?

Ideal for materials with low shear strength like aluminum, copper alloys, or die-cast zinc, but also suitable for strengthening steel threads.

V-COIL rapid

V-COIL rapid Thread Repair Kits, UNC 1/4 x 20 - 1,5D

Name: VÖLKEL V-COIL Rapid Thread Repair Kit, UNC 1/4 - 1.5D
Brand: VÖLKEL
SKU: 04407
Price: 28.40 EUR
Availability: InStock

Item no. 04407

€28.40

in stock - more than 100 pieces available

VÖLKEL delivers exclusively to specialized dealers. Online you can buy VÖLKEL products here.

The prices are in Euro plus VAT and shipping, insurance and packaging costs.

Application

V-COIL Rapid Thread Repair Kit UNC 1/4 – 1.5D

The V-COIL Rapid Thread Repair Kit provides a fast, precise, and reliable solution for restoring damaged UNC threads. It combines stainless steel inserts (Type S, 1.5D) with a Rapid inserting tool, STI tap, and STI twist drill – ideal for maintenance, assembly, and small series production.

Application

Repair of damaged or worn threads
Thread reinforcement in materials with low shear strength
Recovery of rejected parts
Creation of new, durable threads with high load capacity
Ideal for maintenance, assembly, and small series
Wire thread inserts according to DIN 8140, ISO 2 (6H), Type S, stainless steel

Advantages

All tools with 1/4'' hex drive
Suitable for manual or cordless operation
No manual alignment required during insertion
Compact and practical for tight spaces
More robust than conventional repair systems
Corrosion and temperature resistant
Same price as the standard system
Functional, durable storage case

1× V-COIL rapid STI twist drill, 1/4 x 20 – VÖLKEL 03420
1× V-COIL rapid STI tap, Form D, HSS-G, 6 x 1.0 – VÖLKEL 03094
1× Tang break tool, No. 9 – VÖLKEL 07094
10× Thread inserts, Type S, free running UNC 1/4 x 20 – 08307
1× V-COIL rapid inserting tool, 1/4 UNC – VÖLKEL 08195

Step-by-step Guide

1. Preparation: Drill out the damaged thread, deburr and clean the hole.
2. Cutting: Use the STI tap to cut the new holding thread.
3. Inserting: Screw in the insert with the Rapid tool, aligning it flush.
4. Tang Removal: Break off the tang if present.
5. Inspection: Verify fit with a screw or thread gauge.

FAQ

What does UNC 1/4 x 20 mean?
UNC means Unified National Coarse – a thread with a 1/4 inch diameter and 20 threads per inch.

Can I use the kit with a cordless drill?
Yes, all tools feature a 1/4'' hex drive suitable for manual or powered use.

Do I need to use the tang break tool?
Yes, if the inserts include a tang, it should be broken off after installation to ensure a clean thread end.

How durable are the inserts?
Made from stainless steel, they provide excellent corrosion and temperature resistance, ensuring long service life.

Can I reorder components separately?
Yes, all VÖLKEL components – drills, taps, and inserts – are available individually.

Questions about product selection or usage? Our team is happy to help – please use the contact form.

Additional information

Material	Wire Thread Inserts frostainless steel
Size	Diameter 6 x 1.0
Drive connector	Hexagon 1/4" inch
Packing	in plastic case
EAN	4022835043102
Item number	04407

V-COIL Rapid Thread Repair Kit UNC 1/4 – 1.5D

Application

Repair of damaged or worn threads
Thread reinforcement in materials with low shear strength
Recovery of rejected parts
Creation of new, durable threads with high load capacity
Ideal for maintenance, assembly, and small series
Wire thread inserts according to DIN 8140, ISO 2 (6H), Type S, stainless steel

Advantages

All tools with 1/4'' hex drive
Suitable for manual or cordless operation
No manual alignment required during insertion
Compact and practical for tight spaces
More robust than conventional repair systems
Corrosion and temperature resistant
Same price as the standard system
Functional, durable storage case

1× V-COIL rapid STI twist drill, 1/4 x 20 – VÖLKEL 03420
1× V-COIL rapid STI tap, Form D, HSS-G, 6 x 1.0 – VÖLKEL 03094
1× Tang break tool, No. 9 – VÖLKEL 07094
10× Thread inserts, Type S, free running UNC 1/4 x 20 – 08307
1× V-COIL rapid inserting tool, 1/4 UNC – VÖLKEL 08195

Step-by-step Guide

1. Preparation: Drill out the damaged thread, deburr and clean the hole.
2. Cutting: Use the STI tap to cut the new holding thread.
3. Inserting: Screw in the insert with the Rapid tool, aligning it flush.
4. Tang Removal: Break off the tang if present.
5. Inspection: Verify fit with a screw or thread gauge.

FAQ

What does UNC 1/4 x 20 mean?
UNC means Unified National Coarse – a thread with a 1/4 inch diameter and 20 threads per inch.

Can I use the kit with a cordless drill?
Yes, all tools feature a 1/4'' hex drive suitable for manual or powered use.

Do I need to use the tang break tool?
Yes, if the inserts include a tang, it should be broken off after installation to ensure a clean thread end.

How durable are the inserts?
Made from stainless steel, they provide excellent corrosion and temperature resistance, ensuring long service life.

Can I reorder components separately?
Yes, all VÖLKEL components – drills, taps, and inserts – are available individually.

Questions about product selection or usage? Our team is happy to help – please use the contact form.