V-COIL rapid STI-Twist Drill, 12.3 mm

• Core hole enlargement of damaged or worn threads
• Compatible with V-COIL sets & assortments
• Suitable for hand tools and cordless drill drivers
• Ideal for tight or hard-to-reach areas

• High application flexibility
• With 1/4'' hex shank
• For manual use or cordless drill drivers
• Very compact – optimal for confined spaces
• Smaller and more efficient than conventional repair systems

1. 1. Preparation: Clean the damaged thread bore.
2. 2. Alignment: Align the twist drill perfectly vertically.
3. 3. Drilling: Drill evenly using manual or cordless tools.
4. 4. Inspection: Check the enlarged core hole.

• Diameter: 12.3 mm
• Drive: 1/4'' hex shank
• Article number: 03472
• EAN: 4022835034728
• Application area: Core hole enlargement of damaged threads

• 1 × V-COIL rapid STI Twist Drill 12.3 mm (Item 03472)

What is this twist drill used for?
It is used for precise enlargement of core holes in damaged or worn threads, allowing for the installation of a new STI thread.

Does it fit cordless drill drivers?
Yes, the 1/4'' hex shank fits all common cordless drill drivers.

Is it suitable for hard-to-reach areas?
Yes, its compact size makes it perfect for confined spaces.

Can it also be used manually?
Yes, ideal for sensitive workpieces or locations where power tools cannot be used.

Are matching sets available?
Yes, it is included in several V-COIL assortments.

How do I know the hole is enlarged correctly?
By checking with a caliper or by test-fitting the STI tap.