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The Dormer A190 No. 204 25-Piece HSS Jobber Drill Bit Set is a versatile solution for precision drilling in a variety of materials. This comprehensive set includes 25 high-speed steel (HSS) jobber-length drill bits with straight shanks, covering diameters from 1.0mm to 13.0mm in 0.5mm increments, making it ideal for tasks requiring a broad range of hole sizes. Featuring a 118° conical point design, these drill bits ensure accurate starts and reliable performance, while the steam-tempered finish enhances lubricity, reducing friction and heat build-up for smoother operation. Designed for 4xD drilling depths, these bits deliver consistent results in materials such as steel without the need for pecking. The set comes neatly organised in a durable plastic cassette, ensuring easy storage and quick access, whether for professional workshops or industrial applications. Features and Benefits • Steam Tempered (Steam Oxide) Surface Treatment • High Speed Steel Tool Material • 4×D Usable Tool Depth to Diameter Ratio • Drill Point 118° • Cylindrical Shank / Straight Shank • Standard Spiral Flute Design • Right Hand Rotation / Cutting Contents • 25 x Drill Bits • Range of sizes from 1.0mm to 13.0mm x 0.5mm