Step drill bit is a simple tool, it advertised as a “one drill bit for all size holes” Step drill bit is made of high speed steel with titanium nitride coating Their main function is to increase work effectiveness in drilling materials such as stainless steel, aluminum, wood, copper, plastic and so on   For Example […]

A mushroom log drill bit can easily drill holes on the log, let us take a look! Sometimes we want to grow shiitake mushrooms in large quantities or eat wild mushrooms, so growing shiitake mushrooms become a useful skill. Some experienced mushroom growers can grow large and good mushrooms and sell them on the market.

As we all know, wood drill bits can be divided into many types Today let’s Introduce the Wood Spade Drill Bit Often called the wood spade drill bits “spade-bits” for their shape They are cold-forged and treated for the full length for hardness and rust resistance Spade drill bits are used to drill large holes