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British Standard Twist Drill Bits

The imperial shank twist drill bit is made of high-speed steel (HSS), featuring excellent wear resistance and efficient cutting performance. It is suitable for drilling various materials, especially excelling in processing harder metals such as stainless steel, aluminum alloys, and copper. The drill bit's precise design not only enhances work efficiency but also significantly extends tool life.

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Product Description

Specifications	Drill Diameter	Working Length	Shank Diameter	Total Length
9/16	14.29mm	74mm	12mm	147mm
5/8	15.88mm	74mm	12mm	147mm
11/16	17.46mm	70mm	12mm	149mm
3/4	19.05mm	74mm	12mm	150mm
13/16	20.64mm	T7mm	12mm	150mm
718	22.23mm	78mm	12mm	150mm
15/16	23.81mm	75mm	12mm	146mm
1”	25.4mm	74mm	12mm	149mm

Products Features

1: 118° Standard Double Rear Angle Design: CNC precision ground double rear angles offer sharper cutting performance, ensuring fast and accurate drilling.

2: Widened Chip Removal Groove: Anti-burn design with a spiral large groove allows for smooth chip removal, effectively reducing tool damage caused by high temperatures during processing.

3: Universal Shank Design: Ensures secure clamping, prevents slipping, and is highly compatible with various standard drill chucks.

4: High-Speed Steel Material: Made from high-quality HSS, offering high hardness and good toughness, which effectively prolongs the tool's life.

Application

This imperial shank twist drill bit is widely used in metal processing, machinery manufacturing, and construction decoration. It is especially suitable for high-precision drilling operations in harder materials like stainless steel and aluminum alloys, providing fast and efficient processing results.

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