Bosch Series 1 Drill Bit SDS Plus Hammer Drill Bit Sets for Concrete Diameter 6-12mm Round Handle Rotary Hammer Drill Accessories

Bosch Electric Hammer Drill Bit Four Pits Series 1 Drill Bit Adapt to various brands of electric hammers Difference: 1 series with two blades, 5 series with four blades; 5 series can drill reinforced concrete, 1 series cannot Round handle 4-pit 1-series drill bit: 1. Hard alloy double-edged blade, sharp, durable and wear-resistant 2. U-shaped large groove, double spiral penetrating chip removal groove, fast chip removal without sticking drill bit 3. Drillable concrete and brick walls 4. Bosch SDS-Plus four pit clamping system, namely two pits and two slots 5. Self centering blade tip, stable and smooth 4-pit 5-series drill bits: 1. Hard alloy four blade blade blade, sharp, durable and wear-resistant 2. U-shaped large groove, penetrating four groove chip removal, reducing heat accumulation and wear, fast chip removal without sticking, extending service life 3. Can drill concrete, brick walls, reinforced concrete, cement walls 4. Bosch SDS-Plus four pit clamping system, namely two pits and two slots 5. Self centering blade tip, stable, smooth, and fearless of steel reinforcement