Certification: SGS, ISO 9001:2008
Packaging: plywood case
J.B multistep drill bits have great reliability, powerful drilling capacity but low operating cost. High quality materials and professional design, as well as advanced manufacturing technologies result in fast penetration, good performance and long service life. Our drilling tools are widely used for drilling and quarrying in mining industries and other construction fields. It is especially fast and efficient when drilling in hard and medium-hard rock.
|No.||Products||Nominal Thread||Hole Diameter mm||Article Regular|
|1||Multistep Cross Bit||R76||130||JBR76130MCB|
|Raw Material||Production Process||Surface Treatment|
|Alloy steel||water glass investment casting||Electro-galvanized|
|Stainless steel||Silica sol investment casting||Spray-paint|