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. To order any of these items enter the Part Number into the search bar above. (This will take you to the product page where you can add the item to the shopping cart)
| 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 |