19pcs Straight Shank Twist Drill Bit Set High Speed Steel Metal Drilling Tool

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This 19-piece twist drill bit set, crafted from high-speed steel (HSS), offers precision, durability, and versatility for various drilling tasks.The straight shank design ensures optimal concentricity, while the double back angle reduces resistance and heat build-up.Suitable for stainless steel, iron, alloy steel, aluminum, copper, brass, plastic, and wood, it’s ideal for both professionals and DIY enthusiasts. Features HSS Construction: Premium high-speed steel provides excellent hardness, wear resistance, and extended bit life. Multi-Material Use: Works with metals (stainless steel, cast iron, aluminum), plastics, and wood. Optimized Design: Double rear angle and self-centering tip eliminate pilot holes, boosting drilling efficiency. Precision Made: Automatic heat treatment and grinding ensure consistent quality and performance. Comprehensive Sizes: 19 bits ranging from 1mm to 10mm cover diverse drilling needs. Specifications Material: High-Speed Steel (HSS) Shank Type: Straight Shank Bit Sizes: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 10mm Case Dimensions: 152mm × 110mm (5.98in × 4.33in 1–3cm size deviation possible) Application: Metal, aluminum, wood, plastic, alloy steel, copper Package Includes 1 × 19PCS HSS Twist Drill Bit Set with Storage Case Note Please allow 1–3cm size variation due to manual measurement. Slight colour differences may exist due to lighting and screen settings. Keep bits clean and lubricated to extend service life. Not recommended for hardened steel unless using coolant and appropriate drill speed. Always wear eye protection during use.