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OnBuy.com£13.75Visit shop Bosch (350Mm X 10Mm, Blue) Spade Self Drilling Drill Bit
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The Range£14.00Visit shop Bosch Spade Self Drilling Drill Bit - Blue / 1
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The Bosch Spade Self Drilling Drill Bit (350mm x 20mm) is designed for professional carpenters, electricians, and serious DIY enthusiasts who need to bore precise holes in wood with minimal manual effort. Its primary strength lies in the integrated self-feeding thread, which pulls the bit through material efficiently; however, users should be aware that the aggressive self-feeding action can occasionally cause the bit to bind if the power tool lacks sufficient torque control.
| Model Part Number | 1353348 |
|---|---|
| Brand | Bosch |
Yes, as long as your drill has a standard chuck that accommodates a 1/4in hex shank.
No, this bit is designed specifically for wood. Contact with metal will damage the cutting edges.
The bit is 350mm in total length, allowing for deep-hole drilling in thick beams and framing members.
The bit will eventually dull with heavy use. It can be touched up with a sharpening stone, but do not grind away the self-feeding thread.
While the 20mm diameter may be too small for standard door lock hardware, it is perfect for smaller bolt holes and wire management.
Ensure you are applying a light, steady pressure initially and have a marked center point. If necessary, use a small punch to create a pilot indentation.
The bit has likely pulled itself through too quickly. Reduce the drilling speed or use a drill with a side handle for better control.
Ensure the bit is firmly seated in the hex chuck. If vibration persists, verify that the drill chuck is tightened correctly and is not loose.
