Electronic Bobbin Winder RS-11MB

Electronic Bobbin Winder unit base

Part Number: RS-11MB 

• Compatible with standard 21mm bobbins and larger ones up to 28mm in diameter.
• Easy to install and operate with an On/Off switch and a thread tension adjuster. 
• Includes a thread cutter blade for added convenience.
• Automatically shuts off when the bobbin is full.
• Fits all common bobbin types, including:
• Type M
• Type L
• Type 15 (universal)
• Any bobbin with a 1/4 inch (6.4mm) centre hole.