Features： 1、This set is used to clean and decarbonise injector seats when changing injectors 2、It helps to avoid blow-back due to poorly seated injectors 3、It is suitable for a wide range of vehicles, for example 17mm flat cutter with 19mm external diameter for Mercedes-Benz CRD 4、Comes with a package of 17 pcs tools to meet different needs 5、Blow molded storage case keeps the kit together Specification： Description:     Often the seat of the injector has been damaged due to constant erosion from escaping combustion gases.  The only way is to resolve this is to reface the injector seat. This set of diesel injector cutters ensures that the injector seat is bored to the exact dimension when replacing or reconditioning the diesel injectors, avoiding blow back and poor emissions.  Features: This set is used to clean and decarbonise injector seats when changing injectors. It helps to avoid blow-back due to poorly seated injectors. It is suitable for a wide range of vehicles, for example  17mm flat cutter with 19mm external diameter for  Mercedes -Benz CRD. Comes with a package of 17 pcs tools to meet different needs. Blow molded storage case keeps the kit together. Specifications: Material: Metal Color: As Picture Shown Size: As Picture Shown Case Size: Approx. 29 x 22 x 6cm/11.4'' x 8.66'' x 2.36'' Package Weight: approx. 2.3kg Package Included: 1pc T-Handle 1pc 19 x 176mm Pilot Hex 1pc 15.5 X 225mm Cutter 1pc 2.5mm Hex Key 1pc 14mm x 14mm Flat Reamer 1pc 15mm x 19mm Flat Reamer 1pc 15.5mm x 15.5mm Flat Reamer 1pc 15.5mm x 15.5mm Angled Reamer 1pc 17mm x 17mm Angled Reamer 1pc 17mm x 17mm Flat Reamer 1pc 17mm x 17.5mm Flat Reamer 1pc 17mm x 19mm Flat Reamer 1pc 17mm x 19.5mm Flat Reamer 1pc 17mm x 20mm Flat Reamer 1pc 17mm x 21mm Angled Reamer 1pc 17.5mm x 20.5mm Angled Reamer 1pc 19mm x 21.5mm Flat Reamer Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List：