PATIKIL 5.3mm Drill Bit #4, Micro Number Small Bits 4341 High-Speed Steel 135° Gold for Soft Thin Metal Steel Wood Acrylic - 5 Pack
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Product description
- INSTRUCTION When machining different materials, the spindle speed and feed rate vary. Generally, the harder the material, the lower the spindle speed and feed rate should be. For specific speed and feed rate recommend for common materials, please refer to the details provided on the product page.
- APPLICATION The #4 drill bit delivers superior all-around performance, making it the optimal choice for most metal drilling applications. Suitable for light-duty machining; applicable to low-carbon steel, aluminum alloy, brass, cast iron, medium-carbon steel, stainless steel, acrylic, plastic, wood, etc. For machining thicker metals, low RPM + flood coolant is required.
- NOTE Position the twist drill at 90 to the workpiece. For thick materials, drill in multiple passes to prevent overheating or breakage. For large holes, start with a guide hole. Use coolant to improve efficiency, extend tool life, and reduce material damage.
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