V-COIL rapid STI-Twist Drill, 14.4 mm

• Enlarging core holes of damaged or worn threads
• Compatible with V-COIL sets and assortments
• Suitable for hand tools and cordless drills
• Perfect for tight or hard-to-access areas

• High application flexibility
• With 1/4'' hex drive
• For manual or cordless drill operation
• Very compact – ideal for restricted spaces
• Smaller and more efficient than conventional repair systems

1. 1. Preparation: Clean the damaged thread hole.
2. 2. Alignment: Position the Mũi khoan xoắn exactly perpendicular.
3. 3. Drilling: Drill steadily using hand tools or a cordless drill.
4. 4. Inspection: Check the enlarged core hole.

• Diameter: 14.4 mm
• Drive: 1/4'' hex drive
• Article number: 03473
• EAN: 4022835034735
• S2: 42 mm
• L1: 58 mm
• Application: Enlarging core holes of damaged threads

• 1 × V-COIL rapid STI Mũi khoan xoắn 14.4 mm (Art. 03473)

What is the Mũi khoan xoắn used for?
It is designed to precisely enlarge core holes of damaged or worn threads before cutting a new STI thread.

Does it fit into cordless drills?
Yes, the 1/4'' hex drive fits all standard cordless drill chucks.

Is it suitable for tight spaces?
Yes, its compact design makes it ideal for hard-to-reach areas.

Can the Mũi khoan xoắn be used manually?
Yes, perfect for delicate workpieces or areas where machines can’t be used.

Is it included in any sets?
Yes, it is available in various V-COIL assortments.

How do I know the core hole is large enough?
Check using a caliper or by testing with the STI tap.