Customers will have access to up to 20% discount on thousands of products, through the company's app, its stores and online, until 13 August.
Stand-out offers from Toolstation include a saving of £90 on the DeWalt 18V XR Combi and SDS Hammer Drill Twin Kit, now £359.98 from £450.
Greg Richardson, Head of Marketing of Toolstation, said: “Tradespeople and DIYers have trusted us for over 20 years to provide them with great value and high-quality products for their projects.
“The ongoing cost-of-living crisis is continuing to impact people, making initiatives like our biggest summer sale more important than ever.
“Customers need only download our app, go online or in-store to find the best value on thousands or products.”
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