Royal 5C Step & Expanding Collets
- Unlike chucks and most collets that grip the OD of a workpiece, 5C expanding collets are designed to grip on the ID of a part.
- Accu-length design ensures precise workpiece positioning – no z-axis movement.
- Collet head is easily machined to required size. Can be re-machined as necessary.
- Concentricities of ±0.0002″ can typically be achieved using Royal 5C expanding collets.
- Made from 1144 steel that can be hardened after machining for wear resistance.
- Additional head lengths and diameters available. Contact us for information.
Royal 5C Internal Expanding Collets
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Nominal Head Diameter | Head Length | Machinable Range Min-Max | Part Number | PRICE | |
---|---|---|---|---|---|
3⁄4″ |
1″ |
1⁄4″–11⁄16″ |
20100 |
$259
|
|
1″ |
1″ |
7⁄16″–15⁄16″ |
20101 |
$259
|
|
1 1⁄2″ |
1″ |
3⁄4″–1 7⁄16″ |
20102 |
$246
|
|
1 1⁄2″ |
1 1⁄2″ |
3⁄4″–1 7⁄16″ |
20103 |
$270
|
|
1 1⁄2″ |
2″ |
3⁄4″–1 7⁄16″ |
20104 |
$271
|
|
2″ |
1″ |
3⁄4″ - 1 15⁄16″ |
20107 |
$284
|
|
2″ |
1 1⁄2″ |
3⁄4″ - 1 15⁄16″ |
20108 |
$299
|
|
2″ |
2″ |
3⁄4″ - 1 15⁄16″ |
20109 |
$344
|
|
2 1⁄2″ |
1″ |
3⁄4″–2 7⁄16″ |
20112 |
$347
|
|
3″ |
1″ |
3⁄4″–2 15⁄16″ |
20117 |
$381
|
|
5″ |
2″ |
3⁄4″–4 15⁄16″ |
20127 |
$732
|
Royal Replacement Expanding Rods
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Nominal Head Diameter | Head Length | Part Number | PRICE | |
---|---|---|---|---|
3⁄4″ |
1″ |
20135 |
$76
|
|
1″ |
1″ |
20136 |
$70
|
|
1 1⁄2″-5″ |
1″ |
20130 |
$53
|
|
1 1⁄2″-5″ |
1 1⁄2″ |
20131 |
$57
|
|
1 1⁄2″-5″ |
2″ |
20132 |
$58
|

Royal 5C Step Collets

- Royal step collets allow large diameter parts to be held in a 5C collet.
- Head can be easily bored out by customer to required size.
- Three dowel pins are supplied to ensure accurate machining.
- 1 1⁄4″ thick head allows for 1″ bore depth.
- Collets are made from 1144 steel and can be hardened for wear resistance.
Royal 5C Step Collets
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HEAD DIA. | PILOT HOLE SIZE | PIN DIA. | PART NUMBER | PRICE | |
---|---|---|---|---|---|
2″ |
1⁄4″ |
1⁄8″ |
20020 |
$234
|
|
3″ |
5⁄16″ |
1⁄4″ |
20022 |
$310
|
|
4″ |
5⁄16″ |
1⁄4″ |
20024 |
$482
|
|
5″ |
5⁄16″ |
1⁄4″ |
20025 |
$624
|
*We recommend ordering a collet with a head diameter at least 1⁄2″ larger than workpiece diameter.
Note — these step collets close on the 10° angle, not the head OD. When using, be sure part is sufficiently clamped.