Hangzhou Johnson tools Co.,Ltd. was established in 1988;
Our current products are Carbon Steel Hole Saw,Bi-metal Hole Saw And Forstner Bit;
We are able to make the best combination of customer’s
requirement,product’s quality and price;
It’s made from high carbon steel, hardness: HRC40-45used for cut-ting holes in wood, plastic and plaster splinter etc., Teeth type: 6 TPI Diameter :