Sealey DB045CB HSS Cobalt Fully Ground Drill Bit 4.5mm Pack of 10

Sealey DB045CB HSS Cobalt Fully Ground Drill Bit 4.5mm Pack of 10 – Twist Drill Bits
The Sealey DB045CB HSS Cobalt Fully Ground Drill Bit features a precision-engineered design, combining robust high-speed steel (HSS) with advanced cobalt alloy for superior performance. This pack of ten drill bits is meticulously manufactured for enhanced durability, making them ideal for both professional workshops and demanding DIY projects.

• Diameter: 4.5mm
• Material: High-Speed Steel (HSS) with 5% cobalt
• Type: Fully ground for maximum accuracy and longevity
• Cutting edge: 135° split point for reduced wandering and precise starts
• Pack size: 10 pieces

Compared to standard twist drill bits, the Sealey DB045CB HSS Cobalt model offers increased strength and longevity, particularly when working with hardened steels and tough alloys. The fully ground construction delivers smoother drilling, minimised heat build-up, and enhanced chip removal, providing a clear advantage over conventional rolled or and lesser-grade bits. Whether replacing previous models or upgrading to meet tougher project demands, these bits set a new standard in reliability and accuracy for precision drilling tasks.

Key Technical Advantages:
Technology and Performance
Sealey’s use of 5% cobalt alloy ensures exceptional heat and wear resistance, enabling these drill bits to tackle tougher materials without premature dulling or breakage. The 135° split point dramatically reduces bit wandering, allowing for quicker penetration and less force during drilling, which is especially advantageous when working on stainless steel or other hard metals.
Thanks to their fully ground manufacture, these 4.5mm twist drill bits provide a consistently clean, concentric hole—outperforming standard bits that can suffer from inaccuracy and slow progress. The pack of ten means users always have a replacement at hand for continuous, uninterrupted workflow.
In summary, the Sealey DB045CB HSS Cobalt Fully Ground Drill Bit 4.5mm Pack of 10 is an industry-leading choice for both trade professionals and DIY enthusiasts seeking efficiency, durability, and superior results when using twist drill bits for metalworking and construction applications.