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.
QG-65 Emergency Collet shown

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″
$259.00
Max:
Min: 0
Step: 1
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1″
1″
7⁄16″–15⁄16″
$259.00
Max:
Min: 0
Step: 1
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1 1⁄2″
1″
3⁄4″–1 7⁄16″
$246.00
Max:
Min: 0
Step: 1
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1 1⁄2″
1 1⁄2″
3⁄4″–1 7⁄16″
$270.00
Max:
Min: 0
Step: 1
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1 1⁄2″
2″
3⁄4″–1 7⁄16″
$271.00
Max:
Min: 0
Step: 1
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2″
1″
3⁄4″ - 1 15⁄16″
$284.00
Max:
Min: 0
Step: 1
Add
2″
1 1⁄2″
3⁄4″ - 1 15⁄16″
$299.00
Max:
Min: 0
Step: 1
Add
2″
2″
3⁄4″ - 1 15⁄16″
$344.00
Max:
Min: 0
Step: 1
Add
2 1⁄2″
1″
3⁄4″–2 7⁄16″
$347.00
Max:
Min: 0
Step: 1
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3″
1″
3⁄4″–2 15⁄16″
$381.00
Max:
Min: 0
Step: 1
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5″
2″
3⁄4″–4 15⁄16″
$732.00
Max:
Min: 0
Step: 1
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Royal Replacement Expanding Rods

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Nominal
Head
Diameter
Head
Length
Part
Number
PRICE
3⁄4″
1″
$76.00
Max:
Min: 0
Step: 1
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1″
1″
$70.00
Max:
Min: 0
Step: 1
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1 1⁄2″-5″
1″
$53.00
Max:
Min: 0
Step: 1
Add
1 1⁄2″-5″
1 1⁄2″
$57.00
Max:
Min: 0
Step: 1
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1 1⁄2″-5″
2″
$58.00
Max:
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Step: 1
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Royal 5C Step Collets

Royal 5C Step Collet
  • 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″
$234.00
Max:
Min: 0
Step: 1
Add
3″
5⁄16″
1⁄4″
$310.00
Max:
Min: 0
Step: 1
Add
4″
5⁄16″
1⁄4″
$482.00
Max:
Min: 0
Step: 1
Add
5″
5⁄16″
1⁄4″
$624.00
Max:
Min: 0
Step: 1
Add

*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.