Bộ mũi taro ren máy GREEN RING cho lỗ mù M 3 – M 12, kèm theo mũi khoan mồi DIN 371/376

For general use in metalworking—especially when you need repeatable tapping in lỗ bít and expect long, continuous chips.

• For non-abrasive materials up to 900 N/mm²
• Unalloyed & low-alloy steelslong-chipping materials
• HSSE for heat-resistant cutting edges and long tool life
• Spiral flute for controlled chip evacuation from lỗ bít
• ISO 2 (6H) – consistent ISO-fit threads per DIN 13

Learn the GREEN RING concept: ➜ watch on YouTube

The seven GREEN RING machine taps (HSSE) cover the most common M sizes. You can reorder each size individually via the links:

• 1x GREEN RING Mũi taro máy, DIN 371, HSSE, M 3 x 0.5 VÖLKEL 36326
• 1x GREEN RING Mũi taro máy, DIN 371, HSSE, M 4 x 0.7 VÖLKEL 36330
• 1x GREEN RING Mũi taro máy, DIN 371, HSSE, M 5 x 0.8 VÖLKEL 36334
• 1x GREEN RING Mũi taro máy, DIN 371, HSSE, M 6 x 1.0 VÖLKEL 36338
• 1x GREEN RING Mũi taro máy, DIN 371, HSSE, M 8 x 1.25 VÖLKEL 36342
• 1x GREEN RING Mũi taro máy, DIN 371, HSSE, M 10 x 1.5 VÖLKEL 36346
• 1x GREEN RING Mũi taro máy, DIN 376, HSSE, M 12 x 1.75 VÖLKEL 36350
• Twist drills: 2.5 / 3.3 / 4.2 / 5.0 / 6.8 / 8.5 / 10.2 mm

From core hole to finished threadeverything you need is in one box—covering the sizes you use daily in service, assembly, and repair.

1. Drill the core hole: Pick the matching Mũi khoan xoắn (e.g., M8 → Ø 6.8 mm). Drill, deburr, and lightly countersink.
2. Clamp & align: Secure the tap coaxially (length-compensation chuck recommended). Rigidly clamp the workpiece.
3. Lubricate: Apply cutting oil/gel to tool and bore—especially important in lỗ bít.
4. Tap the thread: Use appropriate speed/feed. The spiral flute conveys chips upward out of the blind hole.
5. Retract: Back the tool out in a controlled manner. Avoid lateral loading.
6. Clean & verify: Remove chips, visually inspect, and verify with screw/gauge (6H).
7. Document (optional): Note parameters and tool life for repeat jobs.

The GREEN RING HSSE tap set is built to international standards and optimized for blind hole applications. The table below summarizes the key specifications that ensure compatibility, accuracy and process reliability.

Can I combine VÖLKEL drills and cutting oils with this set?
Absolutely. The matched drills are included; using cutting oil/gel further improves surface finish and tool life.

How do I determine the right cutting speed?
It depends on the material. Start with conservative parameters, observe chip form and finish, then optimize.

Is the set suitable for use on CNC machines?
Yes—use appropriate holders (e.g., tapping chucks) and correct speed/feed synchronization.

What if chips pack in a blind hole?
Increase lubrication, clear chips, and adjust cutting data. The spiral flute helps evacuate chips upward.

Can I reorder individual sizes if one wears out?
Yes. Each size is available separately—see the links in “Set Contents”.