5 Series Four-Pit Electric Hammer Drill Bit, Four-Blade Round/Square Shank Concrete Drill Bits, Rebar Jam-Resistant Break-Resistant for Concrete Wall Masonry Drilling(10x400x460mm)

Material quality: High-speed steelPackaging includes: 1pcs Drill BitFour-blade cutter head design: 1. Make sure the drill bit will not jam the rebar 2. The cutter head is not easy to break 3. Shorten the distance from the tool tip to the chip flute 4. The chip removal rate is greatly improvedRound four hole series drill bit:Suitable for all standard round four-hole clamping electric hammers four hole series drill bit: Suitable for all standard square four-pit clamping electric hammersNote:Due to manual measurement, please allow 1-2cm difference.

• 100% Brand New Industrial-Grade High-Quality ConstructionThis four-pit electric hammer drill bit is 100% brand new and manufactured to strict industrial quality standards. It delivers exceptional impact resistance, superior hardness and long-lasting reliable performance, making it ideal for heavy-duty continuous concrete drilling tasks in both professional construction and home renovation projects.
• Innovative Four-Blade Cutter Head for Rebar Jam-Resistant DrillingEngineered with an optimized four-blade cutter head design, this drill bit effectively prevents jamming when encountering rebar in reinforced concrete walls. The four-edge structure ensures smooth, stable cutting through both concrete and embedded steel bars, eliminating work interruptions and greatly improving your on-site drilling efficiency.
• Reinforced Break-Resistant Cutter Head for Extreme DurabilityThe precision-machined cutter head is specially reinforced to resist chipping, cracking and breaking under high-impact hammer drilling. It maintains sharp cutting performance even under continuous heavy-duty use on hard concrete, greatly extending the service life of the drill bit and reducing your tool replacement costs.
• Optimized Chip Flute Design for Greatly Improved Chip Removal RateThis drill bit features a shortened distance from the tool tip to the chip flute, enabling ultra-fast, unobstructed chip evacuation during high-speed drilling. The optimized flute structure greatly improves the chip removal rate, effectively preventing drill jamming, reducing heat buildup, and delivering smoother, faster drilling performance with less resistance.
• Universal Round/Square Shank Options for Wide CompatibilityWe offer both round shank and square shank options for this 5 series drill bit, making it compatible with the vast majority of four-pit electric hammers on the market. It is specially designed for drilling concrete walls, masonry, brick, cement and other hard materials, making it a must-have tool for professional contractors, construction workers, home renovation teams and DIY enthusiasts.