Collection: Royal Products ER-40 Series Ultra-Precision Collets (Inch & Metric)
Royal Products Ultra-Precision ER-40 Collets represent the pinnacle of tool-holding technology for CNC machining. While standard ER collets often allow for significant runout, Royal's ER-40 series is engineered to a much tighter tolerance, ensuring your cutting tools perform exactly as intended.
The Impact of 0.0002" TIR Accuracy
The most critical specification for any ER-40 collet is its Total Indicated Runout (TIR). Royal guarantees a TIR of 0.0002" (6 microns) or better. By minimizing runout, these collets ensure that chip load is distributed evenly across all cutting edges of the tool. This prevents premature edge chipping, improves surface finishes, and can extend tool life by as much as 30% to 50% compared to standard-grade collets.
Versatile Clamping Range
Each Royal ER-40 collet features a wide collapse range of 0.039" (1.0mm). This flexibility allows a single collet to accommodate a variety of tool shank diameters while maintaining its ultra-precision rating. Whether you are running inch-sized or metric-sized tooling, Royal collets provide full-length surface contact for maximum gripping force and rigidity.
Standard vs. High-Pressure Sealed Models
- Standard ER-40 Collets: Ideal for most general-purpose milling, drilling, and tapping applications where external coolant is used.
- Sealed ER-40 Collets: Specifically designed for through-tool coolant applications. These collets are mechanically sealed to withstand pressures up to 1,400 psi, ensuring 100% of the coolant is delivered directly to the cutting edge to clear chips and reduce heat.
Technical Specifications Summary:
- Series: ER-40 (Industry Standard).
- Material: High-quality spring steel, hardened and precision ground.
- Runout: Guaranteed 0.0002" TIR.
- Compatibility: Fits all standard ER-40 collet chucks.
Shipping Offer: We offer Free Shipping on all orders over $100.
Royal ER-40 Ultra-Precision Standard Inch Collets |
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|---|---|---|---|
| Part Number | Size | Grip Range | Purchase |
| 53200 | 1/8" | 0.125"–0.086" | View Product |
| 53202 | 5/32" | 0.156"–0.117" | View Product |
| 53204 | 3/16" | 0.187"–0.148" | View Product |
| 53206 | 7/32" | 0.218"–0.179" | View Product |
| 53208 | 1/4" | 0.250"–0.211" | View Product |
| 53210 | 9/32" | 0.281"–0.242" | View Product |
| 53212 | 5/16" | 0.312"–0.273" | View Product |
| 53214 | 11/32" | 0.343"–0.304" | View Product |
| 53216 | 3/8" | 0.375"–0.336" | View Product |
| 53218 | 13/32" | 0.406"–0.367" | View Product |
| 53220 | 7/16" | 0.437"–0.398" | View Product |
| 53222 | 15/32" | 0.468"–0.429" | View Product |
| 53224 | 1/2" | 0.500"–0.461" | View Product |
| 53226 | 17/32" | 0.531"–0.492" | View Product |
| 53228 | 9/16" | 0.562"–0.523" | View Product |
| 53230 | 19/32" | 0.593"–0.554" | View Product |
| 53232 | 5/8" | 0.625"–0.586" | View Product |
| 53234 | 21/32" | 0.656"–0.617" | View Product |
| 53236 | 11/16" | 0.687"–0.648" | View Product |
| 53238 | 23/32" | 0.718"–0.679" | View Product |
| 53240 | 3/4" | 0.750"–0.711" | View Product |
| 53242 | 25/32" | 0.781"–0.742" | View Product |
| 53244 | 13/16" | 0.812"–0.773" | View Product |
| 53246 | 27/32" | 0.843"–0.804" | View Product |
| 53248 | 7/8" | 0.875"–0.836" | View Product |
| 53250 | 29/32" | 0.906"–0.867" | View Product |
| 53252 | 15/16" | 0.937"–0.898" | View Product |
| 53254 | 31/32" | 0.969"–0.930" | View Product |
| 53256 | 1" | 1.000"–0.961" | View Product |
Royal ER-40 Ultra-Precision Standard Metric Collets |
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|---|---|---|---|
| Part Number | Size | Grip Range | Purchase |
| 53602 | 4mm | 4mm – 3mm | View Product |
| 53604 | 5mm | 5mm – 4mm | View Product |
| 53606 | 6mm | 6mm – 5mm | View Product |
| 53608 | 7mm | 7mm – 6mm | View Product |
| 53610 | 8mm | 8mm – 7mm | View Product |
| 53612 | 9mm | 9mm – 8mm | View Product |
| 53614 | 10mm | 10mm – 9mm | View Product |
| 53616 | 11mm | 11mm – 10mm | View Product |
| 53618 | 12mm | 12mm – 11mm | View Product |
| 53620 | 13mm | 13mm – 12mm | View Product |
| 53622 | 14mm | 14mm – 13mm | View Product |
| 53624 | 15mm | 15mm – 14mm | View Product |
| 53626 | 16mm | 16mm – 15mm | View Product |
| 53628 | 17mm | 17mm – 16mm | View Product |
| 53630 | 18mm | 18mm – 17mm | View Product |
| 53632 | 19mm | 19mm – 18mm | View Product |
| 53634 | 20mm | 20mm – 19mm | View Product |
| 53636 | 21mm | 21mm – 20mm | View Product |
| 53638 | 22mm | 22mm – 21mm | View Product |
| 53640 | 23mm | 23mm – 22mm | View Product |
| 53642 | 24mm | 24mm – 23mm | View Product |
| 53644 | 25mm | 25mm – 24mm | View Product |
| 53646 | 26mm | 26mm – 25mm | View Product |
Royal ER-40 Ultra-Precision Sealed Inch Collets |
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|---|---|---|---|
| Part Number | Size | Grip Range | Purchase |
| 56202 | 5/32" | Exact Size Only | View Product |
| 56204 | 3/16" | Exact Size Only | View Product |
| 56206 | 7/32" | Exact Size Only | View Product |
| 56208 | 1/4" | Exact Size Only | View Product |
| 56210 | 9/32" | Exact Size Only | View Product |
| 56212 | 5/16" | Exact Size Only | View Product |
| 56214 | 11/32" | Exact Size Only | View Product |
| 56216 | 3/8" | Exact Size Only | View Product |
| 56218 | 13/32" | Exact Size Only | View Product |
| 56220 | 7/16" | Exact Size Only | View Product |
| 56222 | 15/32" | Exact Size Only | View Product |
| 56224 | 1/2" | Exact Size Only | View Product |
| 56226 | 17/32" | Exact Size Only | View Product |
| 56228 | 9/16" | Exact Size Only | View Product |
| 56230 | 19/32" | Exact Size Only | View Product |
| 56232 | 5/8" | Exact Size Only | View Product |
| 56234 | 21/32" | Exact Size Only | View Product |
| 56236 | 11/16" | Exact Size Only | View Product |
| 56238 | 23/32" | Exact Size Only | View Product |
| 56240 | 3/4" | Exact Size Only | View Product |
| 56242 | 25/32" | Exact Size Only | View Product |
| 56244 | 13/16" | Exact Size Only | View Product |
| 56246 | 27/32" | Exact Size Only | View Product |
| 56248 | 7/8" | Exact Size Only | View Product |
| 56250 | 29/32" | Exact Size Only | View Product |
| 56252 | 15/16" | Exact Size Only | View Product |
| 56254 | 31/32" | Exact Size Only | View Product |
| 56256 | 1" | Exact Size Only | View Product |
Royal ER-40 Ultra-Precision Sealed Metric Collets |
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|---|---|---|---|
| Part Number | Size | Grip Range | Purchase |
| 56602 | 4mm | Exact Size Only | View Product |
| 56604 | 5mm | Exact Size Only | View Product |
| 56606 | 6mm | Exact Size Only | View Product |
| 56608 | 7mm | Exact Size Only | View Product |
| 56610 | 8mm | Exact Size Only | View Product |
| 56612 | 9mm | Exact Size Only | View Product |
| 56614 | 10mm | Exact Size Only | View Product |
| 56616 | 11mm | Exact Size Only | View Product |
| 56618 | 12mm | Exact Size Only | View Product |
| 56620 | 13mm | Exact Size Only | View Product |
| 56622 | 14mm | Exact Size Only | View Product |
| 56624 | 15mm | Exact Size Only | View Product |
| 56626 | 16mm | Exact Size Only | View Product |
| 56628 | 17mm | Exact Size Only | View Product |
| 56630 | 18mm | Exact Size Only | View Product |
| 56632 | 19mm | Exact Size Only | View Product |
| 56634 | 20mm | Exact Size Only | View Product |
| 56636 | 21mm | Exact Size Only | View Product |
| 56638 | 22mm | Exact Size Only | View Product |
| 56640 | 23mm | Exact Size Only | View Product |
| 56642 | 24mm | Exact Size Only | View Product |
| 56644 | 25mm | Exact Size Only | View Product |
| 56646 | 26mm | Exact Size Only | View Product |
Royal ER-40 Ultra-Precision Collet Sets |
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|---|---|---|---|
| Part Number | Description | Contents | Purchase |
| 53310 | ER-40 Ultra-Precision Standard Inch Collet Set 15-Piece | 1/8" - 1" by 16ths | View Product |
| 53710 | ER-40 Ultra-Precision Standard Metric Collet Set 23-Piece | 4mm - 26mm by 1mm | View Product |
| 56310 | ER-40 Ultra-Precision Sealed Inch Collet Set 14-Piece | 3/16" - 1" by 16ths | View Product |
| 56710 | ER-40 Ultra-Precision Sealed Metric Collet Set 23-Piece | 4mm - 26mm by 1mm | View Product |