Roto Broaches & Annular Cutters

We offer the highest performance-cost ratio tools for the machining of almost all materials.

Annular Cutter and Roto Broach Set Types

High-Speed Steel and Tungsten Carbide Tips make up a metal core drill. As a result, HSS core drills and TCT core drills are the main commercial types of core drills.

High-speed steel (HSS)

These are the most popular core drills or annular cutters in the market. The biggest advantage of an HSS core drill is its ability to re-sharpen. Unlike TCT core drills, HSS core drills are then re-sharpened and used with good efficiency until a desirable length is remaining. HSS core drills have a longer service life, high heat resistance, and you also do not need excessive force to drill.

Standard

The HSS Standard core drills use M2 steel. Also, western countries use these core drills due to the cost and resharpening advantage. Additionally, Standard HSS core drills drill various materials. For example, Mild and Structural steel, Aluminum, Stainless steel of lower BHN., etc.

Cobalt

The HSS Cobalt are core drills made from M42 Steel. These core drills are harder than Standard HSS core drills. This also gives them better drilling performance on harder materials. A high percentage of Cobalt in HSS makes it faster, stronger and also more durable. This also makes them more effective on materials like Structural Steel, Stainless Steel, Cast Iron, etc.

Hard coating

The HSS core drills with Hard Coating are core drills with generally a Tin Coating on them. Gaining popularity over the Standard HSS core drills, these core drills are more resistant to heat and also have a longer tool life. These are then most often used on Structural steel, Stainless steel, etc.

Tungsten carbide tipped (TCT)

Tungsten carbide-tipped (TCT) core drills have tungsten carbide on their tips, making them suitable for cutting through tougher materials. TCT core drills are more expensive than HSS core drills but are also faster and more efficient making larger holes. Tip breakage is more likely with TCT core drills than with HSS core bits, and you may not resharpen TCT bits.

Standard

A Standard TCT core drill has tungsten carbide tips. These are most often used on magnetic core drilling machines. They are also used on railway tracks, structural steel, stainless steel, cast iron, etc.

Hard Coating

Hard Coating TCT core drills are more resistant to heat, hold a longer tool life, and are also used for the removal of chips like HSS core drills. The biggest advantage of these core drills is they are excellent for cutting larger diameters on hard material. The main use of these core drills is to drill corroded or weathered materials, and also structural and stainless steel.

What Annular Drill Bits might you be looking for?

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