What is the STI HexTap M 15 × 1.5 used for?

The STI HexTap is designed to repair damaged oil drain screw threads by cutting an oversize thread into which a thread insert is placed, restoring the original M15 × 1.5 thread.

What does Multi-Drive mean?

The Multi-Drive system combines an internal hex for ratchet or screwdriver and an external hex for wrenches. It allows flexible use in confined areas.

Which materials can be machined?

This tap is suitable for non-abrasive, unalloyed and low-alloyed steels up to 900 N/mm² tensile strength.

Are there complete kits available?

Yes, complete repair and workshop kits with matching thread inserts and installation tools are available.

What is the STI HexTap M 15 × 1.5 used for?

The STI HexTap is designed to repair damaged oil drain screw threads by cutting an oversize thread into which a thread insert is placed, restoring the original M15 × 1.5 thread.

What does Multi-Drive mean?

The Multi-Drive system combines an internal hex for ratchet or screwdriver and an external hex for wrenches. It allows flexible use in confined areas.

Which materials can be machined?

This tap is suitable for non-abrasive, unalloyed and low-alloyed steels up to 900 N/mm² tensile strength.

Are there complete kits available?

Yes, complete repair and workshop kits with matching thread inserts and installation tools are available.

High-quality STI HexTap thread tap made of HSS-G for M 20 x 1.5 oil drain plug threads with hex shank.

V-COIL automotive

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

Name: VÖLKEL STI HexTap for oil drain screw threads HSS-G – M 15 × 1.5
Brand: VÖLKEL
SKU: 19003
Price: 18.70 EUR
Availability: InStock

Item no. 19003

€18.70

in stock - more than 100 pieces available

VÖLKEL delivers exclusively to specialized dealers. Online you can buy VÖLKEL products here.

The prices are in Euro plus VAT and shipping, insurance and packaging costs.

Application

VÖLKEL STI HexTap HSS-G – M 15 × 1.5 | Thread Repair for Oil Drain Screws

VÖLKEL STI HexTap for oil drain screw threads HSS-G – M 15 × 1.5

The VÖLKEL STI HexTap is the smart, professional tool for repairing damaged oil drain screw threads. Its Multi-Drive system lets you use it flexibly with a ratchet, screwdriver, or wrench – perfect for confined spaces under vehicles. Made from precision-ground HSS-G, it delivers durability, precision, and clean thread repair in one step.

Application & Benefits

Designed for use with oil drain screw threads
Multi-Drive: internal hex for ratchet or screwdriver, external hex for open-end wrench
Suitable for non-abrasive materials up to 900 N/mm²
Unalloyed and low-alloyed steels
Available in individual tools, sets, and workshop kits

Delivery Scope

1 × VÖLKEL STI HexTap HSS-G – M 15 × 1.5

Technical Data

Material	HSS-G
Tolerance	ISO 2 / 6H
Nominal size	M 15 × 1.5
Total length (L1)	50 mm
Thread length (L2)	21 mm
External hex (SW1)	16 mm
Internal hex (SW2)	4 mm
EAN	4022835190035
Article number	19003

FAQ

What is an STI HexTap?
It’s a specialized tap that cuts an oversize thread to accept a screw thread insert, restoring the original oil drain screw thread size.

Which materials can it handle?
Ideal for unalloyed and low-alloyed steels up to 900 N/mm² tensile strength.

What are the advantages of the Multi-Drive system?
It allows you to work with a variety of tools, even in tight spaces – perfect for automotive work.

Are there repair kits available?
Yes, complete sets including thread inserts and installation tools are available.

Step-by-Step Instructions

Preparation: Drain oil, clean and inspect the damaged thread.
Drilling: Drill out the damaged hole to the proper core size and deburr.
Tapping: Lubricate the tap and cut the new STI thread evenly with a ratchet or wrench.
Insert Installation: Screw in the thread insert flush with the surface.
Testing: Reinstall the oil drain screw and check for leaks.

Need assistance? Contact us anytime via our contact form.

Additional information

Type of thread	metric ISO-thread
Standard	Works Standard
Material	HSS-G
Tolerance	ISO2 (6H)
Size	M 15 x 1.5
Overall length (L1)	50 mm
Thread length (L2)	21 mm
Width across flat (SW1)	16.0 mm
Width across flat (SW2)	4 mm
EAN	4022835190035
Item number	19003
Type of flute	straight fluted
Application	for through holes
Thread standard	DIN 13