Bộ sửa ren, UNC số 4 x 40

• Restore UNC số 4 × 40 threads easily and permanently
• Reinforce threads in materials with low shear strength
• Create strong, corrosion-resistant ren trong
• Perfect for metals, plastics and aluminum components
• Delivered in a compact, durable plastic case – always ready to use

Your benefit: a fast, durable repair without reworking the component.

1. Preparation: Clean the damaged thread and pre-drill it with the 3.1 mm Mũi khoan xoắn.
2. Tapping: Cut the new STI thread with the HSS-G tap UNC số 4 × 40 using cutting oil.
3. Inserting: Screw in the stainless thép insert using the Dụng cụ lắp ren cấy until it sits flush.
4. Breaking the tang: Use the Dụng cụ bẻ chân ren cấy to remove the driving tang.
5. Check: Test the repaired thread with a suitable screw.

• Brand: V-COIL
• Nominal size: UNC số 4 × 40
• Repair Length: 1.5D
• Material: Stainless thép
• Packaging: Plastic Case
• EAN: 4022835041016
• Article Number: 04101

• 1× STI Mũi taro máy ngắn, HSS-G, UNC số 4 × 40 (03101)
• 1× Dụng cụ bẻ chân ren cấy, số 4 (07004)
• 1× Dụng cụ lắp ren cấy with Locking Ring, số 4 (08004)
• 20× Ren cấy V-COIL – Type S – Free Running UNC số 4 × 40 – 1.5 D (08301)
• 1× STI Mũi khoan xoắn 3.1 mm (00031)

Can I use this kit for aluminum?
Yes, the stainless thép inserts are perfect for soft materials like aluminum or plastic.

What does 1.5D mean?
The insert length is 1.5 times the nominal thread diameter, ensuring high load capacity.

Is the drill included?
Yes, the matching 3.1 mm STI Mũi khoan xoắn is included in the kit.

Do I need any special tools?
No, everything required is included in the set – you can perform the repair manually.

How long will the repair last?
Properly installed inserts provide a permanent and wear-resistant repair.

Are other sizes available?
Yes, V-COIL offers kits for all common UNC and UNF thread sizes.