Features 1.Function: Precision Dies restore threads to original condition, eliminating the need for thread cutting equipment. 2.Superior Material: Durable Steel Construction with corrosion-resistant and anti-wear property, solid and sturdy, no deformation. 3.Replacement: OTC 202817. 4.Includes Three Dies: 1mm-1.25mm-1.5mm-1.75mm, 2mm-2.5mm-3.0mm-3.5mm; 4mm pitch dies. 5.100% Satisfaction Guarantee: If you're not 100% satisfied with our item, simply return it for a full refund in 30 days, no questions asked money back guarantee with 12 months’ warranty. Product Description .