This needle plate in the version A (TOL4D/SL3314/SLR4D) is the standard needle plate for your overlock machine without built-in roll hem function. The needle plate is inserted into the machine under the needle and presser foot and covers the transporter. Through the hole in the needle plate the needle penetrates the fabric safely.
The needle plate is suitable for the TOL4D / SL3314 / SLR4D overlock machines.