5pcs Titanium Masonry Drill Bit Set 5mm to 12mm Concrete Drill Bit W Hex Shank PVC Shrink Tubing for solar-powered water pumps

for solar-powered water pumps

Total Length: 370mm/14

Nap Length: 4mm / 0

Actuation Distance: 15mm

18 Inch x 1

5pcs Titanium Masonry Drill Bit Set 5mm to 12mm Concrete Drill Bit W Hex Shank PVC Shrink Tubing for solar-powered water pumps1. Made of quality carbide YG6X, the rust resistant treatment and reinforced head prevent the drill from cracking and provide longer service life. The oxygen nitriding treatment of the bit head improves the hardness of the bit 2. Concrete Drill Bits are designed with a U shaped chip discharge groove. This design ensures that all drill dust and chips are collected and released from the drill bit. 3. This 1 4 inch hex shank drill bits can be used on