Let’s compare the two drills to make you understand which one is more efficient and saves you a lot.
Conventional Twist Drill
– It only has one cutting edge or point.
– Since it is solid, it has only cutting point and has to be cut or remove the complete material of the hole to be made.
– Takes more time drilling a hole
– requires pre-drilling or step-drilling
– Can be messy when drilling
– Have multiple cutting edges that can help in drilling with less horsepower and efforts.
– Since it has multiple edges, hollow cuts only on the periphery of the hole can be made.
– Cut less materials and the time it requires is less
– Considered to be 3-4 times faster
– Single core drills can make 5 – 10 times more holes
– Can be regrounded to make another 1500 holes meaning it saves you a lot of tool costs
– Even on larger diameters, it does not require any pre-drilling or step-drilling
– It provides better accuracy
– Burr-free holes and smooth holes created
With all the advantages of the core drill, there are a few things that it is at a disadvantage of. One is that it cannot drill on blind holes. The reason behind is that with its hollow geometry, it can only make holes through. Another disadvantage is in drilling piles of plates. However, there are some core drills or annular cutters that can be used in drilling piles of plates, but it does not guarantee a 100% success rate. When it comes to the price, it is more expensive but the cost made per hole is less than its counterpart.
For questions or enquiries on core drills, just contact us. Picking the right tool saves you time, money and accuracy to your work.