Steel: SUJ2
HRC: 46°
Precision: 5 u (4D length).
It is used for the cutting tools like dills, taps mills and reamers Only for cutting tools that the shank diameter same as collet's hole diameter.
Can not be clamped with contraction.
Clamping ability better than AA type.
Product Details
| Order No. | ER16G-d | ER20G-d | ER25G-d | ER32G-d | ER40G-d |
| D | 16 | 20 | 25 | 32 | 40 |
| L | 27.5 | 31.5 | 34 | 40 | 46 |
| d | 3.5-8 | 3.5-10 | 3.5-16 | 3.5-20 | 3.5-25 |
| dxa | 3.5×2.7 | 4.0×3.0 | 4.5×3.4 | 5.5×4.3 | 5.5×4.3 | 7.0×5.5 |
| 8.0×6.2 | 9.0×7.0 | 10×8.0 | 11×9.0 | 11×9.0 | 14×11 | |
| 16×12 | 18×14.5 | 20×16 | 22×18 | 22×18 |
Ultra-low runout tolerance, ideal for high-speed finishing
Slim elastic slit design delivers balanced clamping pressure
Nitrided anti-wear surface, anti-corrosion and long service life
Compact outer profile, avoids spindle interference during deep cavity machining
Quick tool swap, stable grip for small-diameter precision cutters
Engineered for high-speed precision finishing & die machining.
Ultra-low runout guarantees consistent machining accuracy.
Widely adopted in automated workshops for mold, auto, aerospace and electronic precision parts.
Ideal for both ferrous and non-ferrous metal high-efficiency processing.
Welcome your inquiry.
Sales manager:Sophie
Whatsapp: +8615288891922
Email: ht08@ht-tools.net
Other Products
The collet does not have an elastic shrinkage range, emphasizing the clamping force
Type: EOC16B EOC20B EOC25B EOC32B EOC40B EOC50B This unit is used for boring,milling,drilling,tapping,grinding and engraving operation etc.
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Contact Us
Tel: +86 534 425 1888
Mob/WhatsApp/Wechat: +86 137 9138 1619
E-mail: jacksun@ht-tools.net
Add.:East Area of Economic Development Area, Pingyuan County, Shandong Province. China 253100
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