Features 1、Especially designed for fix Deep Plug Configuration 2、Extension tool can easy access to the bottom of plug groove 3、A nice tool kit for repair damaged spark plug threads and lengthen spark plugs service time 4、Made of high speed steel, these accessories are of strong strength and long durability 5、Fit for car, truck, cropper, diesel engine and gas engine Specifications: Feature: Made of high speed steel, these accessories are of strong strength and long durability. Easy to use and operate. Fit for car, truck, cropper, diesel engine and gas engine. Specifications: Material: High speed steel Item Color: As picture shown Package Weight: 1387g Tap Size: M14 * 1.25 Step Tap Size: M14 * 1.25, M15.5 * 1.25 Sliding Rod Size: 3/8 inch Insert Drive Size: 3/8 inch Allen Key Size: 2.5mm/0.098in Insert: 15mm/9mm 0.59/0.35in Package Include: 19 * Insert 1 * Tap 1 * Step Tap 1 * Sliding Rod 1 * Rimer 1 * Allen Key 1 * Insert Drive Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3.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