HexTap Type DS - Double ended tap, Multi-Drive Form C HSS-G - M 12 x 0.75

The VÖLKEL HexTap Type DS (Double-Sided) is a true innovation in threading tools. It distinguishes itself from conventional taps by its unique design, which offers you several advantages at once.

The Special Feature of this Double-Sided Tap:

• Double Tool Life: If one side of the tap wears out or gets damaged, you simply flip it over and instantly have a fresh, new cutting head available. This effectively doubles the lifespan of your tool without needing to insert a new one.
• Always Ready for Use: Fewer interruptions during work due to tool changes. This is particularly beneficial when you need to cut or repair multiple threads.
• Compact Emergency Tool: You always have a spare cutting edge with you, without requiring extra space.

Furthermore, the HexTap Type DS integrates taper and bottoming taps in one tool on each side. This means that each of the two cutting heads cuts a complete thread in a single operation.

This high-quality double-sided tap is ideal for you if you are:

• Professional Craftsmen and Fitters: Perfect for use on construction sites or for on-site repairs, where flexibility and a multi-application tool are essential.
• Automotive Mechanics and Precision Mechanics: Ideal for re-threading or creating threads in engine parts, chassis, or other assemblies, even in confined spaces.
• Demanding DIY Enthusiasts: Who value durable and versatile tools that can handle a wide range of tasks.

Your Challenges – Our Solutions:

Problem: Difficult Accessibility: Conventional taps often require specialized tools for tight spots.
Solution: The HexTap Type DS, thanks to its slim design and Multi-Drive system (internal hex for ratchet/angle screwdriver, external hex for open-end wrench), is ideal for hard-to-reach areas. You simply choose the appropriate drive for the situation.

Problem: Worn Threads or Damaged Bores: A damaged thread can mean expensive replacement parts or complex repairs.
Solution: This tap is not only excellent for creating new threads but also perfectly suited for re-threading and repairing damaged threads. This saves both time and cost.

Problem: Inaccurate Tap Alignment: A misaligned tap leads to unusable threads.
Solution: The integrated guide pilot on the cutting head ensures accurate and concentric alignment of the tap. This minimizes the risk of crooked threads and increases process reliability.

There are many taps on the market, but the VÖLKEL HexTap Type DS stands out due to specific features that offer you real added value:

1. Metric ISO Fine Thread DIN 13 – Precision for Specific Requirements:

The metric ISO fine thread according to DIN 13 with a nominal size of M 12 x 0.75 is ideal for applications requiring high strength, fine adjustability, or improved sealing (e.g., in hydraulics or pneumatics). The smaller pitch (0.75 mm instead of 1.75 mm for M12 coarse thread) ensures more engaged threads and increased resistance to vibrations.

2. Multi-Drive System – Unmatched Drive Flexibility:

This is a unique selling point of the HexTap. Instead of a fixed square drive, it offers:

• Internal Hex (Wrench Size 4 mm): Perfect for use with a ratchet or an angle screwdriver. Ideal for tight spaces and quick, repetitive movements.
• External Hex (Wrench Size 8 mm): Allows for driving with a conventional open-end wrench or ring spanner. This versatility means you always have the right driving tool at hand, even if you only carry a small selection of tools.

3. Form C Lead – The All-Rounder for Thread Cutting:

Form C is one of the most common lead forms for taps. It is characterized by a longer lead of approx. 2-3 threads with back taper.

• Versatile Use: Ideal for general use in through and blind holes, as it offers a good compromise between easy starting and clean thread cutting.
• Good Chip Evacuation: Supports efficient removal of chips, which increases process reliability.

4. HSS-G Material – Maximum Durability and Cutting Performance:

Made from HSS-G (High Speed Steel, Ground), this tap offers superior properties:

• Robustness: High toughness and heat resistance to withstand the stresses during thread cutting.
• Precision: The ground finish (G) ensures extremely sharp cutting edges, an excellent surface finish of the thread, and high dimensional accuracy.

5. ISO 2 / 6H Tolerance – Fit Security:

The 6H tolerance class is the standard for metric ISO internal threads. It ensures a play-free yet smooth fit with external threads of standard tolerance 6g, ensuring the compatibility and functionality of your connections.

6. Application in Hard-to-Reach Areas:

The slim design combined with the various drive options makes this HexTap the first choice when conventional tap wrenches or machine adapters are too bulky.

• Thread Type: Metric ISO Fine Thread DIN 13
• Material: HSS-G (High Speed Steel, Ground)
• Tolerance: ISO 2 / 6H
• Nominal Size: M 12 x 0.75
• Overall Length (L1): 70 mm
• Thread Length (L4): 22 mm
• External Hex Wrench Size (SW1): 8 mm
• Internal Hex Wrench Size (SW2): 4 mm
• EAN: 4022835677260
• Article Number: 67726

1: What exactly is a "double-sided tap"?

A double-sided tap, like the VÖLKEL HexTap Type DS, has a fully functional cutting head at both ends of the tool. This means that if one side becomes worn or damaged, you can simply flip the tool over and immediately have a new, unused cutting head available. This effectively doubles the tap's lifespan and saves time on tool changes.

2: Can I use this tap in a drilling machine?

This tap is primarily designed for manual use, especially due to its specific hex drives (internal and external hex) and Form C, which offers a good compromise for hand and universal machine applications. For pure machine use in series production, there are specialized machine taps with different shanks, but for occasional machine applications or with a suitable adapter, use is generally possible, provided the machine can control the low speed and torque.

3: What thread sizes and pitches can this HexTap cut?

This specific HexTap is designed for creating metric ISO fine threads of size M 12 with a pitch of 0.75 mm. Always ensure that your threading project requires precisely this nominal size and pitch.

4: Which materials is this tap suitable for?

The HexTap Type DS is suitable for general use in easily machinable materials up to 900 N/mm² tensile strength, as well as for unalloyed and low-alloy steels. This includes construction steels, free-cutting steels, but also non-ferrous metals such as aluminum, brass, or cast iron that fall within this strength range.

5: How do I best use the guide pilot?

The guide pilot extends slightly beyond the cutting edges and helps you to accurately center and align the tap precisely in the pre-drilled hole. Carefully insert the pilot into the hole before you start cutting to avoid binding or cutting crooked threads. It is particularly helpful when starting new threads or re-threading to cleanly engage the existing thread.