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Product Specifications:
| Item | Collet |
| Bore Shape | Round |
| Clamping Hole Length | 7/8" |
| Collet Series | 3J Series |
| Collet Size | 21/64" |
| Collet Type | Standard |
| Coolant Through | No |
| External Thread Direction | Right Hand |
| External Thread Size | 1.988-20 |
| Face Shape | Round |
| For Use With | Collet System |
| Head Dia. | 2 1/5" |
| Internal Thread Size | 1.79"-24 |
| Max. Body Dia. | 21/64" |
| Max. Bore Dia. | 2" |
| Max. Outside Dia. | 2.21" |
| Measurement System | Inch |
| Min. Size | 21/64" |
| Overall Length | 3 3/4" |
| System Of Measurement | Imperial |
| T.i.r. Tolerance | 0.0008" |
| Taper Angle | 14.246° |
Shipping Info:
| Ship weight (kg) | 0.63 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 2.54 |
| Ship width (cm) | 2.54 |
Product Variants
| Product | Model | Max. Body Dia. | Max. Outside Dia. | Head Dia. | Min. Size | For Use With | Face Shape | Collet Type | Coolant Through | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
018-024 | 3/8" | 1.04" | 1.035" | 3/8" | Collet Chucks | Round | Standard | No | €38.47 | |
![]() |
020-016 | 1/4" | 0.54" | 0.539" | 1/4" | Collet Chucks | Round | Standard | No | €32.64 | |
![]() |
020-024 | 3/8" | 0.54" | 0.539" | 3/8" | Collet Chucks | Round | Standard | No | €32.64 | |
![]() |
500-004 | 1/16" | 1.47" | 1.485" | 1/16" | Collet System | Round | Standard | No | €56.57 | |
![]() |
500-009 | 9/64" | 1.47" | 1.485" | 9/64" | Collet System | Round | Standard | No | €49.50 | |
![]() |
500-010 | 5/32" | 1.47" | 1.485" | 5/32" | Collet System | Round | Standard | No | €49.50 | |
![]() |
500-011 | 11/64" | 1.47" | 1.485" | 11/64" | Collet System | Round | Standard | No | €49.50 |
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LYNDEX-NIKKEN 300-021 Collet, Round Face, 21/64 Inch Size
€132.95 /unit



