ER 20 Tap Collets
FOR RIGID TAPPING
Accu-Collets & Lyndex ER COLLETS
These collets feature a unique design that incorporates an internal square drive with our popular ER series collets. The square drives match the tap square providing a tight fit for all rigid tapping applications. Utilizing ER tap collets and a standard ER collet chuck allows you to vary the gage length of your tapping application without the need for special tapholders.
| ANSI Standard | Accu-Collets | Lyndex | ||
| Tap Size | Shank Size | Square Size | ||
| #0-6 | 0.141 | 0.110 | 20-141-RA-AC | 20-141-RA-LY |
| #8 | 0.168 | 0.131 | 20-168-RA-AC | 20-168-RA-LY |
| #10 | 0.194 | 0.152 | 20-194-RA-AC | 20-194-RA-LY |
| #12 | 0.220 | 0.165 | 20-220-RA-AC | 20-220-RA-LY |
| 1/4 | 0.255 | 0.191 | 20-255-RA-AC | 20-255-RA-LY |
| 5/16 | 0.318 | 0.238 | 20-318-RA-AC | 20-318-RA-LY |
| 3/8 | 0.381 | 0.286 | 20-381-RA-AC | 20-381-RA-LY |
| 7/16 | 0.323 | 0.242 | 20-323-RA-AC | 20-323-RA-LY |
| 1/2 | 0.367 | 0.275 | 20-367-RA-AC | 20-367-RA-LY |