V-COIL rapid STI-Twist Drill, 6.3 mm

• Core hole enlargement of damaged or worn threads
• Compatible with V-COIL kits & assortments
• Suitable for hand tools and cordless drills
• Ideal for confined or hard-to-reach areas

• High application flexibility
• Equipped with a 1/4'' hex shank
• For manual use or cordless drills
• Very compact – ideal for restricted spaces
• Smaller and more efficient than traditional repair systems

1. 1. Preparation: Clean the damaged thread bore.
2. 2. Alignment: Position the drill exactly perpendicular.
3. 3. Drilling: Drill evenly by hand or with a cordless drill.
4. 4. Check: Inspect the enlarged core hole.

• Diameter: 6.3 mm
• Drive: 1/4'' hex shank
• Item number: 03084
• EAN: 4022835030843
• Application: Core hole enlargement for thread repair

• 1 × V-COIL rapid STI-Twist Drill, 6.3 mm (Item 03084)

What is the twist drill used for?
It is used for precise enlargement of core holes in damaged or worn threads before cutting a new STI thread. This ensures a clean and stable foundation for long-lasting thread repairs.

Does the drill fit into cordless screwdrivers?
Yes – thanks to the 1/4'' hex shank, the drill fits into all common cordless screwdrivers and quick-release chucks, making it ideal for on-site repair work.

Is the drill suitable for hard-to-reach areas?
Yes – thanks to its compact and extremely handy design, the drill can also be used in narrow or obstructed areas where standard drill bits are too large.

Can the drill also be used manually?
Yes – thanks to its size and hex shank, it is suitable for careful manual drilling in delicate components or where a machine cannot be used.

Is it available as part of V-COIL kits?
Yes – the drill is included in various V-COIL kits and assortments and can also be used as a replacement component.

How do I know when the core hole is large enough?
After drilling, the opening should match the correct STI core hole diameter. If unsure, you can verify using a caliper or by testing with the matching STI tap.