ريشة الثقب بوش قياس (10X4mm) و المصنوعة من الفولاذ عالي الجودة (HSS)

They are suitable for drilling through wood, metal, plastic, and PVC, offering versatile use across common project materials.

A precision-ground tip reduces wandering, provides smoother entry, and helps you achieve cleaner, more accurate holes with less rework.

A 4mm bit is ideal for pilot holes, smaller holes for screws or dowels, and fastening hardware where a precise, small-diameter hole is required.

Secure your workpiece, insert the bit into a standard drill chuck, select an appropriate speed for the material, apply steady pressure without forcing, and periodically withdraw to clear chips. For metal, consider a slight lubricant to reduce heat.

Yes, they are designed to fit standard drills with common chucks, typically 1/4 inch (6.35mm) shanks, ensuring quick and easy bit changes.

Wipe bits clean after use, dry thoroughly, and store them in the provided case or a protective organizer to prevent rust and maintain edge integrity. A light coat of oil can be applied if you won’t use them for an extended period.

Wear eye protection, secure the workpiece, use proper drill speed for the material, don’t apply excessive force, and keep hands away from the rotated bit. Allow bits to cool if drilling metal for extended periods.

Yes. Having ten bits in one pack provides a ready supply for multiple tasks, reduces downtime from changing bits, and generally offers a favorable price-per-bit versus purchasing singly.

Both packs use the same 4mm HSS design with precision-ground tips, but the 10pc pack provides more bits for higher-volume work and typically offers better value for money per piece. Compare the two here: https://fepy.com/product/bosch-hss-drill-bit-4mm-6-pcs-pack

Both offer identical 4mm bit size and a 10-piece set, but brand differences may affect tip geometry, cutting efficiency, and price. See Makita’s 4mm 10pc option here: https://fepy.com/product/makita-hss-drill-bit-4mm-10-pcs-pack

Yes. They work well in both cordless and corded drills as long as the chuck accommodates a standard 4mm bit shank and you follow appropriate speed recommendations for the material being drilled.