1. Made of copper material, melting point up to 1083 Celsius degree.  
2. Good electrical conductivity and thermal conductivity.  
3. All contained in a compact and see through compartmented plastic case.  
4. Great for sump plugs, water, fuel and hydraulic fittings.  
5. A sump plug washer set to suit all types of engines be it Car, Marine, Generators, Machinery and Plant.  
6. Size:  
M6 x 12 x 1 (20 PCS)  
M8 x 14 x 1 (20 PCS)  
M10 x 14 x 1 (15 PCS)  
M12 x 18 x 1.5 (15 PCS)  
M14 x 18 x 1 (15 PCS)  
M16 x 20 x 1.5 (15 PCS)  
M18 x 24 x 1.5 (10 PCS)  
M20 x 26 x 1.5 (10 PCS)