Very stable multi-range drill with outstanding thermal resistance, reinforced drill core and a parabolic chip groove for optimized chip removal. Ideal for drilling into materials with medium and long chip lengths. Due to its thick core and special chip groove with a rounded rear edge, this drill is ideally suited for heavy-duty applications. It covers a wide range for types N, H and W.
Heavy-duty high speed steel with 5 % cobalt content.
High ductility and heat resistance, for drilling holes in difficult-to-machine materials with a strength of up to 1100 N/mm².
Drilling depth
5 x diameter
Technical data
Coating - uncoated
Shaft - cylindrical
Cutting direction - right hand cutting
Tip grinding - Shape U: Special ground
Tolerance - h8
Spiral angle - 40°
Drilling depth - 5 x diameter
Groove profile - wide with rounded rear edges
Core - very thick
Point angle - 130°