STI HexTap for oil drain screw threads HSS-G - M 15 x 1.5

• Producing the insert receiving thread that matches the selected wire thread insert system
• Preparing repair holes for insert installation in service, maintenance and workshop tasks
• Applying an insert based repair process where fit and alignment have to stay repeatable from part to part
• Process: manual driving or assisted driving depending on your holder and machine setup
• Use: thread cutting, re tapping, and thread cleaning depending on condition

Note Select the product by thread designation, workpiece condition and the holder concept used in your process.

• Matched repair logic supports repeatable restoration of an existing thread designation
• Insert based repair can improve service life of the receiving thread in repeated assembly work
• Suitable for maintenance, overhaul and workshop repairs where part replacement is undesirable
• Clear assignment between preparation, tapping and insert installation reduces handling errors

• The process depends on the correct repair sequence and is not suitable when the parent material is cracked or too thin for the repair concept.
• It is a repair system and not the fastest choice when you only need a one time emergency fix without the full preparation steps.

1. Prepare the core hole and secure the workpiece so the tool can enter on axis.
2. Clamp the STI tap in a suitable holder or drive with secure torque transmission.
3. Align the tap square to the hole entry and start the cut with controlled feed.
4. Advance the tap according to your process while keeping lubrication and alignment stable.
5. Reverse and remove the tap carefully once the receiving thread is completed.
6. Clean the thread and check it before insert installation begins.

• 1 piece STI HexTap for oil drain screw threads HSS-G - M 15 x 1.5

• Product type: STI HexTap
• Thread system: Metric ISO
• Standard: ISO 2
• Tool material or finish: HSS-G
• Tolerance marking: Tolerance

What do you use STI HexTap for oil drain screw threads HSS-G - M 15 x 1.5 for?

You use this product when an internal thread must be restored, reinforced or prepared within a wire thread insert repair process. The exact role depends on whether the product is the kit, the insert, the STI tool or the installation accessory.

Where can you find more technical background?

For additional technical background, see Technical information V-COIL thread repair as PDF.

What is STI in this repair context?

STI refers to the receiving thread used for wire thread inserts, so the preparation tool must match the insert system rather than a normal direct fastening thread.

How do you identify the correct Metric ISO execution?

M denotes the ISO metric thread system used widely in mechanical engineering, maintenance and general fastener work where metric screw threads are standard.

Where can you find the catalog entry for this product group?

For catalog level orientation, see VC 23 catalog as PDF.

What should you check before assembly after repair?

Check that the repaired thread is clean, the insert sits correctly when applicable and the mating fastener engages smoothly without cross threading.