{"id":19117,"date":"2023-06-28T06:00:58","date_gmt":"2023-06-28T06:00:58","guid":{"rendered":"https:\/\/dev.guehring.com\/1-formplatte-3-werkzeuge-tieflochbohren-im-formenbau\/"},"modified":"2026-04-22T14:06:24","modified_gmt":"2026-04-22T14:06:24","slug":"deep-hole-drilling-in-mould-making","status":"publish","type":"post","link":"https:\/\/guehring.com\/de-en\/deep-hole-drilling-in-mould-making\/","title":{"rendered":"Correct deep hole drilling in mould making"},"content":{"rendered":"

[et_pb_section fb_built=”1″ _builder_version=”4.23.1″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_row module_class=”gue-row-text” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.6″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n

Form inserts manufacture<\/span>
\nTools and strategies for deep hole drilling in mould making<\/span><\/h1>\n

Deep hole drilling plays a significant role in the mould and die sector<\/a>, especially in the production of injection moulding tools. High-quality cutting tools are indispensable for drilling holes with a high degree of precision and a good surface finish. For example, the tools must be equipped with suitable internal cooling in order to effectively remove chips from the deep holes. We have put together a selection of tools \u2013 plus cutting parameters \u2013 that ensure a successful deep hole drilling process.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_4,1_4″ module_class=”gue-page-header” _builder_version=”4.23.1″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”3_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/guehring.com\/wp-content\/uploads\/2025\/09\/Blod_Headergrafik_Juni_2023_Tieflochbohren.jpg” alt=”Tieflochbohren im Formenbau” title_text=”Tieflochbohren im Formenbau” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”1_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row module_class=”gue-row-text” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

The component<\/span>
\nA form insert made of steel<\/span><\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_5,2_5″ module_class=”gue-row-vertical-aligned-content gue-row-2col-image-text” _builder_version=”4.21.0″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/guehring.com\/wp-content\/uploads\/2025\/09\/Bauteil.png” alt=”Formplatte aus Stahl” title_text=”Formplatte aus Stahl” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]Temperature control drill holes need to be produced in a steel (1.2312) form insert. These will later serve as coolant ducts through which a coolant can flow, for example, in order to control the temperature of the mould. This is especially important for reducing cycle times and improving the quality of the moulded parts. In this example, deep hole drilling is carried out on a horizontal machining centre by DMG; programming was performed using Tebis.[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

The right way to approach deep hole drilling<\/h2>\n

The procedure for deep hole drilling on a horizontal machining centre is typically divided into three steps:<\/p>\n

    \n
  1. Finishing: <\/b>This step is needed on curved and inclined surfaces. Here, a flat drill or milling tool is used to create a flat base on which drilling can then be performed.<\/li>\n
  2. Piloting: <\/b>Pilot drilling is required to drill a deep hole on a machining centre. This is between 1.5xD and 3xD deep and is used to guide the deep hole drill. Inadequate guidance influences the hole quality and the concentricity.<\/li>\n
  3. Deep hole drilling: <\/b>For the production of a deep hole, several tools in different lengths may be used one after another in order to gradually reach the required depth of the hole. This approach allows for better chip control, more stable holes and optimised machining times.<\/li>\n<\/ol>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row module_class=”gue-row-text” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

    Step 1<\/span>
    \nFinishing on curved and inclined surfaces<\/span><\/h2>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ module_class=”gue-row-vertical-aligned-content gue-row-2col-image-text” _builder_version=”4.21.0″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/guehring.com\/wp-content\/uploads\/2024\/03\/GUE_flachbohrer-rt100-fb-nahaufnahme.png” alt=”Nahaufnahme eines Flachbohrers RT 100 FB” title_text=”Nahaufnahme eines Flachbohrers RT 100 FB” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

    RT 100 FB flat drill<\/h3>\n

    You can skip the finishing and piloting steps by using the new RT 100 FB flat drill from G\u00fchring. Thanks to its straight main cutting edge, drilling and piloting on inclined or curved surfaces is possible up to 45\u00b0 without any deflection. The RT 100 FB with a \u00d8 of 8 was used for this component. However, for shallow hole entries, we recommend opting for an alternative tool.[\/et_pb_text][et_pb_toggle title=”Cutting data” _builder_version=”4.27.6″ _module_preset=”default” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n