At Cutwel, we supply economy, general and performanceHSS drills for machining steels <HRc45, stainless steels, heat resistant super alloys, cast irons & non-ferrous materials including brass and aluminium.
To make it easier to choose from our comprehensive range, we have highlighted our 5 most popular HSS drills below. Here you will find out their features, benefits and where it is best to use them, because we want to ensure you pick the right drill to suit your application.
The HSS substrate contains 5% cobalt and the drilling edge is TiN coated. Together, these increase tool life compared to standard HSS drills.
We have had nothing but positive feedback on these drills, which are ideal for general drilling of steels <HRc32, stainless steels, titanium, inconel and aluminium.
These jobber length drills range from 1-13mm. Anything above 1.6mm diameter has a split point geometry which gives the drill a higher accuracy when entering the material.
Overall, this is a fantastic economic drill for all general applications where tool costs have to be kept low without negatively affecting performance and accuracy. These are ideal for both manual and CNC machines and also suitable for use with power drills.
Worm pattern drills feature a parabolic u-shaped flute for efficient chip evacuation of softer, longer chipping & sticky materials like soft steels, grey & malleable cast iron, magnesium alloys and aluminium.
Just like the GOLD-P drills, these also feature a 5% cobalt substrate for added tool life and strength. However, these come uncoated to avoid the material sticking to the drill (a common issue with coated drills on softer materials such as aluminium). They also featuring deep flute pockets to prevent chip clogging.
The range of depths they cover is an added bonus too – our worm pattern drills are available at depths from 3xD all the way up to 25xD!
Larger drill depths have a special design specifically for deep hole drilling in soft materials, with specific ranges for aluminium & soft steels.
A standout feature of these drills over the more general HSS range is that it is self-centering. This eliminates the need for a pilot hole completely. Removing this process both saves time and money, as a spot drill is not needed.
This drill is designed for machining carbon, alloyed & tool steels and cast iron.
Overall, the HPD premium cobalt HSS drill is great for higher performance machining, meaning you can push it further than general HSS drills and, in return, will get greater tool life and higher rigidity. Its self-centring geometry further reduces tool costs by removing the need for a pilot hole.
The YG-1 SUS drills boast a unique vanadium cobalt substrate (with a TiN coating) which offer exceptional wear resistance in stainless steel and HRSA (heat resistant super alloy) applications.
It’s special design, utilising deep flute pockets and a 4-facet flute geometry, prevents built up edge, work hardening and flute clogging, which are all common issues faced in stainless drilling. The SUS drill is also useful when machining soft sticky steels and long chipping materials like copper and aluminium.
The wide flute design also reduces vibration and deflection, making this drill great on manual machines or where it is hard to control vibration. It can also be used on NC/CNC machines.
Overall, the SUS drill is perfect for higher performance stainless steel drilling without the need for high performance machines or through coolant. If of course you do have the machining capacity for higher performance carbide drills then we would recommend our Dream Drill Inox range. But if vibration is an issue or our Dream Drills are out of your price range, the SUS drills are our go-to range.
It is also useful where a carbide drill is not suitable, but you need carbide-like properties, for example where there is a lack of through coolant. This is especially useful on demanding materials such as titanium, Inconel, stainless steels and alloy steels.
Whilst this option is higher cost than HSS drills, its self-centring geometry does eliminate the need for a spot/centre drill which, combined with its much longer tool life and higher performance, may in the long run make this your most economical option.
Overall, the Multi-1 drill offers the best performance and tool life of all the drills listed here because it features the best of both HSSand carbide (tougher and faster). Also, on manual machines where vibration is an issue or where through coolant is not possible, this will be by far the most best option.
Of course, the decision at the end of the day is entirely up to you, and can come down to a variety of factors like cost, machine type and material. But I do hope I’ve given you a better understanding of how each of our HSS drills can be useful and in which situations they work best.
If you do have any further questions, or if you would like a personalised drill recommendation, please click here to get in touch or call 01924 869610 or email email@example.com.