HSS Twist Drills

Best HSS Twist Drill Suppliers in India

An HSS twist drill is a cutting tool used to produce accurate round holes in metal and other machinable materials, identifiable by its helical flutes that carry chips away from the cutting edge as it drills. They come in different sizes, lengths, shank configurations and HSS grades to suit a range of drilling requirements. We supply HSS Twist Drills across India from our base in Kolkata, covering different diameters and grades. If you need a specific drill series, shank type or grade for your application, it's worth getting in touch before you order.

HSS Twist Drills for Different Industrial Applications

HSS twist drills are used across most general and industrial drilling work. A few common applications:

• General Metal Drilling

The standard choice for drilling round holes in mild steel, aluminium and similar materials across everyday workshop work.

• Machine & Component Manufacturing

Used to drill accurate holes in machine parts and components where hole placement and size need to be consistent.

• Automotive & Engineering Applications

Common in automotive parts manufacturing and general engineering work where repeat hole drilling is part of the process.

• Fabrication & Structural Work

Fabricators use them for drilling bolt holes and mounting points on plates, brackets and structural sections.

• Deep-Hole & Extended-Reach Drilling

Longer series drills are used where the hole needs to go deeper than a standard-length drill can reach.

• Maintenance & Repair Work

Kept on hand for on-site repairs and modifications where a hole needs to be drilled quickly and accurately.

How to Choose the Right HSS Twist Drill?

HSS twist drill selection depends on the hole diameter, drilling depth, workpiece material, shank type and your machine setup. Getting these wrong leads to poor hole finish or a drill that wears out fast. Here's what to check before ordering:

• Drill Diameter and Hole Size

The diameter should match your required hole size precisely, since even a slight variation affects fit for bolts, pins or fittings.

• Drill Series and Overall Length

Standard-length drills suit most jobs, while a longer series is needed when the hole depth exceeds normal reach.

• Shank Type and Machine Compatibility

Straight and taper shanks fit different machine chucks, so the shank type needs to match your drilling equipment.

• HSS Material and Grade

Different HSS grades hold up better under heat and wear, which matters more as material hardness or drilling speed increases.

• Point Geometry and Surface Treatment

The point angle affects how the drill starts and cuts, and coatings or surface treatments can extend tool life on tougher materials.

Why Choose Genuine Enterprises for HSS Twist Drills?

Sourcing HSS twist drills from one supplier makes it easier for a machine shop or fabrication unit to keep a full range of diameters, lengths and grades on hand without dealing with multiple vendors. Matching diameter, series and grade correctly the first time also reduces broken drills and rework, which adds up on high-volume drilling work.

This makes us the leading HSS twist drill bit supplier in Kolkata for machine shops, manufacturers and fabricators across India who need specific diameters or grades for their drilling requirements, whether it's a one-off order or a recurring one. 

Frequently Asked Questions

1. What is an HSS twist drill used for?
It's used to drill accurate round holes in metal and other machinable materials across general and industrial work.

2. What's the difference between straight and taper shank drills?
Straight shanks fit standard chucks, while taper shanks fit directly into a machine spindle for larger or heavier-duty drilling.

3. How do I know which drill series to choose?
Standard series suit most jobs, while longer series are needed for holes deeper than a standard drill can reach.

4. Can HSS twist drills be used on stainless steel?
Yes, though a higher HSS grade or coated drill is often recommended to handle the added heat and wear.

5. Do you supply HSS twist drill bits in different sizes?
Yes, we supply hss twist drill bit options across a wide range of diameters, lengths and grades for different drilling needs.

6. Do you supply HSS twist drills outside Kolkata?
Yes, we supply machine shops and manufacturers across India, not just buyers within Kolkata.