SPECIFICATION: Drillpro 4th. Upgrade 11.5 Inch Chainsaw Bracket Change 100 Angle Grinder Into Chain Saw Woodworking Tool Upgrade features: The Alumunium Bracket is 9cm, bigger than the 3rd. one which is only 8cm and it works better. The 4th. has a thicken protecting guard which can protect the chain while the 3rd. one doesn't have. The turning button can loose and tighten the chain more convenient without extra screwdriver. The automatic refueling bottle and get you free from extra bottle. Features: - This Chain Saw Bracket Set fits the 100 angle grinder and the grinder is not included in this package,pls understand. - Its input power depends on your own 100 angle grinder, so it is not certain. - It has thicken plastic handle which is very convenient for carrying. - Safety of sawing, effectively improve the efficiency of your work. - This chain has automatic refueling bottle, can let you free from extra bottle, it is more convenient than before. - This chain saw bracket set is an improved version of the Titan saw chain and is semi professional chain. Package Included: 1 x Chain Saw Bracket Set *100 angle grinder is not included