HLD
Pull back crown drill
Diameter:Φ12.5mm~Φ40mm
Effective length: 1.5D/3D/5D/8D/10D/12D
*The processing accuracy can guarantee the hole tolerance of 0.1mm and the roughness of Rz6.3 (steel parts) Rz (stainless steel)
*2-3 grinding times reduces the customer’s tool cost
*The same tool holder can be used to clamp multiple models and diameters of crown drills, which can reduce tool storage
*The tool holder is made of steel, which increases the toughness during tool processing and is less likely to cause the tool to break.

Crown drills are widely used in heat exchange, wind power, engineering machinery, automobiles, military industry, machine tools, construction and mining equipment, aerospace, Haitian machinery, shipbuilding, railway transportation, mechanical tools and other industries.

There are also production tool tips. Please choose different tool tips according to the processing materials.