Notes from the grinding floor.

Short engineering notes on tool geometry, cutting data and what the inspection reports actually say. Written to be checked, not skimmed.

13 Jan 2022Process notesWhat -0.003 mm means on a 0.03 mm drillThe catalogue states a one-sided -0.003 mm diameter tolerance on the DC326 range. Here is how to read that against a real part number.2 min6 Jan 2022Product notesDC426 and the neighbouring options in the recordThe DC426 series black-coated solid carbide drill offers superior performance in micro drilling applications due to its optimized coating and geometry. ## Series Overview and Key Features The DC426 series.3 min7 Oct 2021Process notesWhy HDCS636 shows up in inspection failuresThe HDCS636 series demonstrates consistent performance across its diameter range, with key measurements that directly influence tool life and machining efficiency. ## Series Overview and Key Specifications The HDCS636 series.3 min8 Jun 2021Product notesHow to read the geometry callout on DC426The DC426 series black-coated solid carbide drill is designed for high-precision micro drilling in challenging materials such as steel, stainless steel, copper, and aluminium alloys. ## Understanding the Series Code.3 min13 Apr 2021Product notesSelecting HDCS636: what the production record tells youThe HDCS636 series is ideal for non-standard step drilling applications where precise stepped and counterbored holes are required, based on its verified production record. ## Series Overview and Key Specifications.3 min8 Dec 2020Application notesWhere HDC636 fits in the process sequenceThe HDC636 series demonstrates exceptional performance in high-speed PCB and precision drilling applications, with its TiN-coated left-hand solid carbide design enabling reliable and efficient material removal. ## Series Overview and.3 min