Contact Info
Address: 1178 Zhaizishan Road, Huangdao District, Qingdao City, Shandong Province
Phone: +86-15063986252
Whatsapp: 8615063986252
Email: lucas@ruiliftools.cn
Why Deep Hole Drilling Parameters Must Be Checked for Each Material
Release Time:
Jun 16,2026
Select deep hole drilling data for the exact workpiece grade and condition, considering strength, ductility, work hardening and heat behaviour together.
Use the Exact Grade and Supplied Condition
A material name such as steel or stainless steel is not enough to select cutting data. Heat treatment, hardness and the supplied condition can change machinability within the same material family. Confirm these details together with the drill specification and hole geometry before transferring a previously successful program.
Hardness Is Only One Part of the Assessment
Strength, hardness, abrasive constituents and work-hardening behaviour can affect cutting loads and wear in different ways. There is no single rule that converts a hardness difference directly into a safe spindle speed or feed adjustment. Use the tool manufacturer's starting recommendations for the identified application and verify the result.
Do Not Confuse Toughness with Ductility
Toughness describes resistance to fracture with energy absorption; ductility describes plastic deformation before fracture. Neither property alone predicts chip shape. Workpiece structure, cutting geometry, feed and speed also influence chip formation. A short chip can be normal for one material, while another requires a different geometry or operating range to avoid long chips.
Review Heat Behaviour and Tool Compatibility
Thermal conductivity, adhesion and the tool's cutting material and coating all influence the application. Surface or chip colour is not a direct measurement of cutting temperature. Review edge condition, measured hole quality and coolant delivery together rather than adjusting the process from colour alone.
Conclusion
The same numerical parameters may sometimes be suitable for more than one material, but this must be established from application guidance and validation, not assumed. Keep records by grade and condition, including the approved drill body and cutting component combination. Avoid treating a successful trial on one material as approval for the entire family.
Phone/WhatsApp
Ruilif Tools (Qingdao) Co., Ltd.
Founded in 2011, Ruilif Tools (Qingdao) Co., Ltd. manufactures modular drill bodies, replaceable cutting heads and custom hole machining tools.
Send an Enquiry
Tell us your material, hole dimensions and tooling requirements.