Step-Drill Bit- 4241 High Speed Steel Bits Cut Faster, Stay Cooler and Last Longer- Sizes 1/4 to 1 3/8

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4241 High-Speed Steel Step Drill Bit - withstand higher temps without losing its hardness which last longer than standard carbon bits. Sizes 1/4 to 1

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Step-Drill Bit- 4241 High Speed Steel Bits Cut Faster, Stay Cooler and Last

4241 High-Speed Steel Step Drill Bit - withstand higher temps without losing its hardness which last longer than standard carbon bits. Sizes 1/4 to 1

Step-Drill Bit- 4241 High Speed Steel Bits Cut Faster, Stay Cooler and Last Longer- Sizes 1/4 to 1 3/8

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4241 High-Speed Steel Step Drill Bit - withstand higher temps without losing its hardness which last longer than standard carbon bits. Sizes 1/4 to 1

Step-Drill Bit- 4241 High Speed Steel Bits Cut Faster, Stay Cooler and Last Longer- Sizes 1/4 to 1 3/8

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Step-Drill Bit- 4241 High Speed Steel Bits Cut Faster, Stay Cooler and Last

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Shank Dia:1/4'' hexagon handle Material: High-speed steel 4241, suitable for the workpiece with the hardness below 25 degree Surface treatment

4241 High-speed Steel Step Drill Bit