采用沉底式感应钎焊固齿的φ40毫米三、四、五齿、φ42毫米五、六齿球齿钎头，以及φ40毫米三刃形钎头，是结合我国国情研制的新产品。以此为基础，又衍生12个品种，即φ32、φ34、φ36、φ38毫米三、四齿球齿钎头和φ32、φ34、φ36、φ38、φ42、φ44毫米三刃形钎头。这些新型钎头产品，在直径系列、几何结构参 The use of sinking Induction brazing solid teeth φ40 mm three, four, five teeth, φ42 mm five, six-tooth ball tooth bit, and φ40 mm three-blade bit, is the combination of China’s national conditions developed new products. Based on this, 12 types of φ32, φ34, φ36, φ38 mm three-and four-tooth ball bit heads and three-edge bit heads φ32, φ34, φ36, φ38, φ42 and φ44 mm are also derived. These new brazing products, in the diameter series, the geometry of the Senate