Home MAINTENANCE SPRAYS Shock & Unlock 500ml View cart “Holts Professional Electrical Contact Cleaner Spray 500ml” has been added to your cart. 🔍 Shock & Unlock 500ml£5.49 Frees rusted components Dual action penetrates and cools Synthetic base oil A powerful penetrator and releasing agent Releases seized rusted bolts and locks Penetrates rust, grease, oil & carbon Shock & Unlock 500ml quantity Add to cart SKU: SU500SC11 Category: MAINTENANCE SPRAYS Related products Rocket TT Super Lubricant 300ml £4.49 Add to cart WD40 Multi-Purpose Lubricant 450ml £8.99 Add to cart Holts EGR & Carb Cleaner Spray 500ml £4.99 Add to cart Comma Release Oil 500ml £8.49 Add to cart