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    IRWIN 10502850 Step Drill Bit 9 Hole sizes; 4-12mm

    # 10502850

    • The Irwin Step Drill Bits are designed for precise drilling in thin materials and have a single flute for maximum drilling control into sheet metal.
    • Their unique flute design ensures perfect round holes in sheet metal.
    • A fluted shank also prevents the drill bit from slipping in the chuck; along with self centering point that will not walk and eliminates center punching.
    • The Irwin Step Drill Bits are designed for precise drilling in thin materials and have a single flute for maximum drilling control into sheet metal.
    • Their unique flute design ensures perfect round holes in sheet metal.
    • A fluted shank also prevents the drill bit from slipping in the chuck; along with self centering point that will not walk and eliminates centro punching.
    • Made from industrial grade M7 high-speed steel.
    • Number of hole sizes: 9
    • Hole diameters: 4; 5; 6; 7; 8; 9; 10; 11 and 12mm

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