| After-sales Service: | After-Sale Provided |
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| Warranty: | One Year |
| Logo Printing: | According to Customer Request |
| Samples: |
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
ER Collet set packed in plastic or wooden box including collet chuck,er collet,key:
1.packing:Plastic or wooden box
2..A set include:1 collet chuck,1 clamping nut,full sets of collets ,1 spanner.
Sets according to your request
Collet chuck standards: BT, DIN, CAT, Morse, Sk etc.
3.Collet chuck runout: 0.015mm
Collet runout:within 0.015mm
Assembly runout:within 0.02mm
4. material:High quality alloy steel
5.Rust prevent
| mode no. | pcs/set | shank | ||
| inch | mm |
R8 MT2-MT6 NT 30 NT40 NT50 C8 C10 C12 C16 C20 C25 C32 C40 1/2" STR.SH 5/8"STR.SH 3/4" STR.SH 1" STR.SH 1-1/4" STR.SH |
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| ER16-8pcs in(mm) |
3/32 1/8 3/16 7/32 1/4 5/16 11/32 3/8 |
2 3 4 5 6 7 8 10 | 8 | |
| ER25-6pcs in(mm) | 1/8 3/16 5/16 3/8 1/2 5/8 | 4 6 8 10 12 16 | 6 | |
| ER25-10pcs in(mm) |
3/32 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 |
3 4 5 6 8 10 12 14 15 16 | 10 | |
| ER32-6pcs in(mm) | 1/4 5/16 3/8 1/2 5/8 3/4 | 6 8 10 12 16 20 | 6 | |
| ER32-12pcs in(mm) |
3/32 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 |
3 4 5 6 8 10 12 14 15 16 18 20 | 12 | |
| ER40-8pcs in(mm) | 1/8 1/4 3/8 1/2 5/8 3/4 7/8 1 | 3 5 8 12 15 18 22 26 | 8 | |
| ER40-15pcs in(mm) | 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 | 3 4 5 6 8 10 12 14 15 16 18 20 22 24 26 | 15 | |
thread of draw bar
| taper of collet chuck | thread of draw bar | |
| R8 | 7/16"-20UNF | |
| 7:24 30 | M12x1.75 | 1/2"-13unc |
| 7:24 40 | M16x2.0 | 5/8"-11unc |
| 7:24 50 | M24x3.0 | 1"-8unc |
| MS2 | M10x1.5 | 3/8"-16unc |
| MS3 | M12x1.75 | 1/2"-13unc |
| MS4 | M16x2.0 | 5/8"-11unc |
| MS5 | M20x2.5 | 3/4"-10unc |
| MS6 | M24x3.0 | 1"-8unc |
The standard ER collet is the most widely used clamping tool in the world.
Made from Alloy spring steel and fully hardened,the ER collets are ideal for many machining applications including boring, milling, reaming, tapping and grinding.
1)Runout of our ER collet are within 0.005mm-0.015mmm
2)ER8, ER11, ER16, ER20, ER25, ER32, ER40 and ER50 collet
3)Made of high quality steel:65Mn
4)Packing:inner packing is plastic or paper box,the outer packing is cartons.
5)We normally supply two kinds of accuracy: first accuracy 0.008mm,second accuracy 0.015mm. The highest accuracy is 0.005mm.
6) Inspection:100% collet inspection.
| Model No. | d H7 | D | D1 | D2 | L | L1 | L2 | L3 | Collapsible Capacity |
| ER8 | ≥1.0-5.0 | 8 | 8.45 | 6.5 | 13.5 | 2.98 | 1.5 | 1.2 | 0.5 |
| ER11 | >1.0-7.0 | 11 | 11.5 | 9.5 | 18.0 | 3.8 | 2.5 | 2.0 | 0.5 |
| ER16 | ≥1.0-2.5 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4.0 | 2.7 | 0.5 |
| >2.5-10.0 | 16 | 17 | 13.8 | 27.5 | 6.26 | 4.0 | 2.7 | 1.0 | |
| ER20 | ≥1.0-2.5 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 | 0.5 |
| > 2.5-13.0 | 20 | 21 | 17.4 | 31.5 | 6.36 | 4.8 | 2.8 | 1.0 | |
| ER25 | ≥1.0-2.5 | 25 | 26 | 22.0 | 34.0 | 6.66 | 5.0 | 3.1 | 0.5 |
| >2.5-16.0 | 25 | 26 | 22.0 | 34.0 | 6.66 | 5.0 | 3.1 | 1.0 | |
| ER32 | ≥2.0-2.5 | 32 | 33 | 29.2 | 40.0 | 7.16 | 5.5 | 3.6 | 0.5 |
| >2.5-20.0 | 32 | 33 | 29.2 | 40.0 | 7.16 | 5.5 | 3.6 | 1.0 | |
| ER40 | ≥3.0-26.0 | 40 | 41 | 36.2 | 46.0 | 7.66 | 7.0 | 4.1 | 1.0 |
| ER50 | ≥6.0-10.0 | 50 | 52 | 46.0 | 60.0 | 12.6 | 8.5 | 5.5 | 1.0 |
| >10.0-34.0 | 50 | 52 | 46.0 | 60.0 | 12.6 | 8.5 | 5.5 | 1.2 |
1. Are you a factory or trading company?
We are integration of industry and trade.
2. Could you provide non standard products?
Yeswe can.We can also make and supply the goods as delivered samples of drawings.
3. What products do you supply?
We can supply tool holders;wood working mentals;machine accessories;tool bits&thread tool
4. Could you supply samples?
Yes, we can.
5. Can I buy one piece?
Yes, we accept one piece order.
6.How about your product warranty?
Our product warranty is 12 month
Suppliers with verified business licenses
Audited Supplier 
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