1. Comes in a plastic collet box.
2. Full set covers all sizes from 0.0429 to 0.5000".
3. Total runout less than 0.0003" on these precise ER20 collets.
4. The following sizes are included 1/16 1/8 5/32 3/16 7/32 1/4 5/16 11/32 3/8 13/32 7/16 1/2.
5. It can be widely used for boring, milling, drilling and tapping operation.
The following schematic diagrams and product pictures are only for reference.
If you have any questions, please contact us.
◆ Made from 65Mn alloy steel and hardened to HRC 46-50
◆ All fractional size is true imperial size, not a metric conversion size
◆ All collets are checked its runout individually on 4 contact points by a high tolerance bench marked testing rod
◆ On size 1/8" and larger the runout is .0003"; under size 1/8 the runout is .00059"
◆ The size of the collet is the largest size it can hold and able to hold anything smaller within the collapsing range
This collet size is true fractional size, not a metric converting size and the surface on this collet has been
specially treated to increase its tool life. Runout is .0003".
| Condition | Brand-New |
| Brand | Kilowood |
| SKU | Q000058347 |
| Collet Series | ER20 |
| Collet Range(d) | 0.60" |
| Diameter(D1) | 0.81" |
| Overall Length (L) | 1.24" |
| Runout | ≤0.0003" |
| Net Weight | 20.68 ounces |
| Gross Weight | 24.69 ounces |
| Type | Collet Grip Range |
| 1/16 | 0.0625"-0.0429" |
| 1/8 | 0.1250"-0.0850" |
| 5/32 | 0.1562"-0.1162" |
| 3/16 | 0.1875"-0.1475" |
| 7/32 | 0.2187"-0.1787" |
| 1/4 | 0.2500"-0.2100" |
| 5/16 | 0.3125"-0.2725" |
| 11/32 | 0.3438"-0.3038" |
| 3/8 | 0.3750"-0.3350" |
| 13/32 | 0.4062"-0.3662" |
| 7/16 | 0.4375"-0.3975" |
| 1/2 | 0.5000"-0.4600" |