TC312 Overload Protection Tap Collet M2-M16 (ISO/JIS/INCH)
Tapping chuck/holder M2-M16 for quick-change tap holding with overload protection. 20 catalogue models. Factory-direct from NBD (Beijing Shuangfengli) — custom sizes on request.
Description
The TC312 Overload Protection Tap Collet M2-M16 (ISO/JIS/INCH) is part of NBD’s tapping tool holder line for CNC machining centers, tapping machines, drill presses and lathes, designed for quick-change tap holding with overload protection. Tapping range M2-M16 with 20 catalogue models.
Features
- High precision, long tool-life with torque protection function.
- Torsion reflect sensitive and changes according to various
- Used for kinds of tapping machine including electric
- At present, many tapping machine factories have been
Model Naming
Model = Standard prefix (ISO/JIS) + collet size (GT12/GT24/GT42 or TC312/TC820/TC1433) + tap size (e.g. M12); d = tap shank dia., W = tap square.
Specification
| Model | Spec | Dimensions (mm) | ||
|---|---|---|---|---|
| ISO-TC312-M2 | M2 | 2.5 | 2X2 | |
| ISO-TC312-M3 | M3 | 3.15 | 2.5X2.5 | |
| ISO-TC312-M4 | M4 | 4 | 3.15X3.15 | |
| ISO-TC312-M5 | M5 | 5 | 4X4 | |
| ISO-TC312-M6 | M6 | 6.3 | 5X5 | |
| ISO-TC312-M8 | M8 | 6.3 | 5X5 | |
| ISO-TC312-M10 | M10 | 8 | 6.3X6.3 | |
| ISO-TC312-M12 | M12 | 9 | 7.1X7.1 | |
| ISO-TC312-M14 | M14 | 11.2 | 9X9 | |
| ISO-TC312-M16 | M16 | 12.5 | 10X10 | |
| JIS-TC312-M2 | M2 | 3 | 2.5X2.5 | |
| JIS-TC312-M3 | M3 | 1/8 | 4 | 3.2X3.2 |
| JIS-TC312-M4 | M4 | 5/32 | 5 | 4X4 |
| JIS-TC312-M5 | M5 | 3/16 | 5.5 | 4.5X4.5 |
| JIS-TC312-M6 | M6 | 1/4 | 6 | 4.5X4.5 |
| JIS-TC312-M8 | M8 | - | 6.2 | 5X5 |
| JIS-TC312-M10 | M10 | 3/8 | 7 | 5.5X5.5 |
| JIS-TC312-M12 | M12 | - | 8.5 | 6.5X6.5 |
| JIS-TC312-M14 | M14 | 9/16 | 10.5 | 8X8 |
| JIS-TC312-M16 | M16 | - | 12.5 | 10X10 |
All dimensions in mm. Custom sizes and other interfaces on request — send us your drawing for a fast quote.
NBD (Beijing Shuangfengli Technology Co., Ltd.) manufactures CNC tool holders, tapping chucks and workholding with short lead times and factory-direct support for worldwide distributors and end users.
Additional information
| Interface / Taper | C312 |
|---|---|
| Tapping Range | M2-M16 |
