AeroPro A398

The IRWIN SDS Speedhammer Plus Drill Bits are designed for SDS drilling. They drill exceptionally fast into brick, block, masonry, concrete and granite. The patented, unique single flute design ensure more→s efficient, speedy removal of dust and lower vibrations and 28% greater capacity meaning more efficient waste removal. They have a patented extra-short drill bit head which means the head takes 80% of the workload, ensuring higher durability and speed. Clears drilling dust directly into the flute, reducing the risk of clogging. The bits have 25% more tungsten carbide for extra strength and they drill 25% faster than competitive drill bits with the same high durability. In addition, they have more …

Features: Expert Quality, manufactured from high carbon steel hardened and tempered. Chisels are finely ground and polished with honed cutting edges. Chisel shank diameter 13/16" (Stock No. 79069 is 1 more→.3/16"). Display packed.

The HSS Twist Drill Bit Ground is for drilling through metal with maximum precision. The bit's exposed 135-degree self-centring split-point tip combines active cutting and perfect centring without wan more→dering, delivering maximum precision. The split-point tip also eliminates any need to pre-punch or pilot drill for up to 10 mm. This precision-ground bit made of HSS (high-speed steel) enables up to 40% faster drilling rate and up to 50% lower feed pressure than standard-ground HSS drill bits with chisel edges. This bit is designed for drilling holes in alloyed and non-alloyed steel, cast steel, cast iron, sintered iron, malleable cast iron, non-ferrous metals and hard plastics. The HSS Twist Drill …