| Description | d | D | L | Length Comp. | Expan. | Tap Size | Suitable Adaptors |
|---|---|---|---|---|---|---|---|
| SK30 FWFLK 1 64 | 19 | 36 | 64 | 7.5 | 7.5 | M3-M12 | WE1 /WES1 B |
| SK40 FWFLK 1 60 | 19 | 36 | 60 | 7.5 | 7.5 | M3-M12 | WE1 /WES1 B |
| SK40 FWFLK 2 98 | 31 | 53 | 98 | 12.5 | 12.5 | M8-M20 | WE2 /WES2 B |
| SK50 FWFLK 1 60 | 19 | 36 | 60 | 7.5 | 7.5 | M3-M12 | WE1 /WES1 B |
| SK50 FWFLK 2 84 | 31 | 53 | 84 | 12.5 | 12.5 | M8-M20 | WE2 /WES2 B |