This special puller from Beta Tools is specially designed for installing and removing tension springs. The plastic coated T-handle grip makes it easy to pull the spring into position and twist the spring onto its mount post. The 3.5mm (1/8") hook opening fits most light- to medium-duty drum brake springs, exhaust retainer springs, even throttle return springs. The Beta orange grip makes it easy to find in a hurry. Overall length 155mm (6").