25*HSS Metric Thread Tap Drill Bit Wrench Kit M4x0.7 Coil Helicoil Set Tool

Features: *25Pcs/Set Metric Thread Repair Insert Kit M4*0.7 Coil Helicoil Set Tool *100% brand new and high quality *Made of high quality material sturdy and durable in use *30pc thread repair kit including 25 wire thread inserts *Ideal for restoring damaged threads suitable for engine repair and other automotive *Applications for steel cast iron and aluminum *Can be used in daily repair car repair drilling machine etc. Specifications: *Material: HSS *Model: M4x0.7 How to use: 1. Drill out damaged thread using correctly sized drill bit(supplied) 2. Tap re-drilled hole using tap supplied 3. Load coiled insert into applicator 4. Screw coil into casting 5. Using lug breaking tool break off tag on insert 6. Thread is repaired and ready to use. Package Contents: 20*Thread inserts 1*Lug breaking tool 1*Installation tool 1*Wrench 1*Thread tap 1*Drill bit Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.