Machine Tap GREEN RING JIS B-4430 Form B HSSE - M 3.5 x 0.6

The combination of proven GREEN RING quality and special geometry makes this tap an indispensable tool:

• Perfect for Through Holes: Thanks to Form B with a short lead, the tap efficiently pushes chips forward. This helps you avoid chip jams and tool breakage in the workpiece.
• Versatile Application: The GREEN RING standard stands for broad applicability in unalloyed and low-alloy steels, as well as in materials that tend to form long chips.
• Long Service Life: The HSSE (High-Speed Steel with Cobalt) material used is particularly wear-resistant and heat-resistant. This allows for higher cutting speeds and a longer tool life.

Follow these steps to cut a perfect thread:

1. Step 1: Prepare the core hole. Drill a core hole with a diameter of 2.9 mm. Make sure the hole is straight and clean to achieve a precise result.
2. Step 2: Clamp the tool. Securely insert the tap into the machine. The 3.2 mm square drive ensures a firm grip.
3. Step 3: Cut the thread. Guide the tap through the prepared core hole with the correct speed and feed rate. The chips are efficiently discharged forward thanks to Form B.
4. Step 4: Check the thread. Check the cut thread with a suitable thread plug gauge to control its tolerance and quality.

• Thread Type: Metric ISO Thread DIN 13
• Standard: JIS B-4430
• Form: Form B
• Material: HSS-E
• Tolerance: OH2
• Nominal Size: M 3.5 x 0.6
• Overall Length (L1): 48 mm
• Thread Length (L2): 11 mm
• Shank Diameter (D2): 4 mm
• Square Drive: 3.2 mm
• EAN: 4022835916062
• Item Number: 91606

Q: What is the JIS B-4430 standard?

A: JIS stands for "Japanese Industrial Standards." The JIS B-4430 standard defines the dimensions and tolerances for taps in Japan. It is comparable to the internationally widespread DIN and ISO standards and ensures that the tool meets global quality standards.

Q: What are "long-chipping materials"?

A: Long-chipping materials are those like certain steel grades or aluminum that form long, continuous chips during machining. The geometry of this tap is optimized to efficiently discharge these long chips and prevent chip jams.

Q: What does the OH2 tolerance class mean?

A: OH2 is a tolerance class according to the Japanese standard (JIS) and is roughly equivalent to the 6H tolerance according to the DIN standard. It defines the fit of the tap to ensure that the cut thread is compatible with most standardized screws.

Q: What core hole diameter do I need for the M 3.5 x 0.6 thread?

A: The rule of thumb is: nominal diameter minus pitch. For an M 3.5 x 0.6 thread, you therefore need a core hole with a diameter of 2.9 mm (3.5 mm - 0.6 mm).

Q: What is the difference between this tap and the DIN 371 Form C?

A: The biggest difference is the application. This tap (Form B) is designed for through holes and pushes chips forward. In contrast, a Form C tap is intended for blind holes and conveys chips backward via the spiral flute.