ريشة مثقاب ماكيتا المطرقية (D-17544/D-29094) نوع (SDS-Plus) قطر (14mm) طول (460mm)

14 mm diameter, 460 mm overall length, 400 mm working length, SDS-Plus shank, tungsten carbide tip, and precision-ground double-flute design. They are clearly identified for quick model selection as D-17544 or D-29094.

They’re best suited for drilling into concrete, stone and other masonry materials, especially for deeper holes and heavy-duty tasks.

The tungsten carbide tip is harder and more wear-resistant than standard steel tips, which provides longer bit life and enables faster, more durable drilling in tough materials.

Insert the bit into an SDS-Plus rotary hammer with a secure fit, then apply steady pressure and let the hammer do the work. Periodically withdraw the bit to clear dust and avoid overheating, and always follow your tool’s operating guidelines.

Wear eye protection and hearing protection as needed, use gloves, clamp the workpiece securely, keep hands away from the rotating bit, and ensure the drill is in good condition. Use appropriate speed settings and avoid forcing the bit into the material.

Keep the bits clean and dry, remove dust after use, inspect the carbide tip for wear or damage, avoid bending or dropping the bit, and store in a dry place to prevent corrosion.

They’re ideal for anchors and fasteners in concrete, drilling deep holes for electrical conduits, plumbing, or heavy-duty anchoring in masonry walls and floors.

Both share the same core specs (14 mm diameter x 460 mm overall length with a 400 mm working length). The choice usually comes down to availability or SKU preference. You can view both product pages here: https://fepy.com/products/makita-d-17544-sds-plus-hammer-drill-bit-14mm-460mm and https://fepy.com/products/makita-d-29094-sds-plus-hammer-drill-bit-14mm-460mm

Yes, if you’re exploring different lengths or head designs, you can browse related Makita SDS-Plus bits in the Makita category on Fepy to compare options with similar specifications.

Life depends on material hardness, drilling conditions, and feed rate. The carbide tip helps extend life in tough materials like concrete, but you should regularly inspect wear and replace the bit if the tip or flute becomes damaged or dull.

Consider using an SDS-Plus compatible hammer drill with adequate power, appropriate lubrication or dust extraction as needed, and safety gear such as eye protection and hearing protection to optimize performance and safety.