4 Piece Taper Hole Chamfer HSS M35 Countersink Deburring Drill Bits Set, Chamfer Countersink Deburring Drill Bits Set Cutting Metal Tool, M42 M35 HSS Countersink Drill Bits 90 Degree, Countersink HSS Drill Bits, Carbide Tipped Countersink Drill Bits Set, Single Flute & Deburring High-speed steel construction with titanium-coated finish for durable, smooth cutting, Woodworking Metalworking & Multipurpose Drill Bits China Supplier Factory Manufacturer
4 Piece Taper Hole Chamfer HSS M35 Countersink Deburring Drill Bits Set Specifications
Oblique hole chamfering machine
Features: High hardness, wear resistance, fast efficiency
Material: High speed steel containing cobalt
Usage: Iron plate, aluminum plate, insulation board, PVC board, etc
Item: When the working temperature of the chamfering machine is high, it needs to be cooled with water or cutting oil, otherwise it will burn out
Applicable machines: bench drill, drilling machine, machining center milling machine
Prohibited use: Hand drill
Scope of use: Stainless steel, aluminum alloy, mold steel, copper, cast iron, steel plate
Prohibited use: ceramic tiles, concrete, walls, stone, etc
Package Including:According to your choose. Choose your need from above drop down menu.
Types of Countersink Drill Bits
Aside from the fluted countersink, there are various types of countersink drill bits, including:
Cross-Hole Cutter
This is also called a “zero flute” countersink. One distinguishing aspect of this countersink is the drill hole running the length of the cone’s side. The tool’s cutting edge is formed by the intersection of the hole and cone.
Zero-flute countersinks are ideal for deburring and countersinking softer materials, such as aluminium, wood, or plastic to make a countersunk screw hole. They are also suitable for the installation and design of glass, windows, and door frames.
Flat Countersink
Compared to fluted countersinks, flat countersinks have a more cylindrical shape. Flat countersinks are used to create countersinks for cylinder head screws, hexagon head screws, and nuts.
A fixed guide is located at the tip of the rod, and is typically placed into the pre-drilled hole. This guarantees that the drilling equipment is guided steadily and precisely. The cutting edges also remove material from the workpiece and create space for the cylindrical screw head.
Best Countersink Drill Bits For Metal
Before purchasing drill bits for your metalwork, it’s important that you understand the different types, including:
High-Speed Steel (HSS) Drill Bits
HSS is a popular material for drill bits because of its hardness and excellent wear resistance. It is possible to drill faster and is suited to more robust materials with these properties.
Cobalt Drill Bits
Drill bits made with Cobalt-infused High-Speed Steel (HSS) have an increased toughness compared to standard HSS drill bits.
Carbide Drill Bits
Carbide is the hardest drill bit material and has the longest lifespan. Steel drill bits with carbide tips are the most common material used to make carbide drill bits. They are the best countersink drill bits and are used for hard-to-drill materials like steel and in drilling larger holes.
Common Countersink Drill Bit Coating
Countersink drill bits are available with various coating options, such as:
Black Oxide
In terms of lubricity, black oxide is superior to a bright finish. Countersink drill bits with a black oxide coating last 50% longer with additional heat treatment compared to an ordinary HSS. 4Pcs Chamfer Countersink Deburring Bits Set Cross Hole Metal Cutting Tool
Titanium Nitride
Titanium nitride, or TiN, titanium is a corrosion-resistant metal used to coat HSS drill bits to increase their surface hardness. Designed for drilling through rigid material, TiN drill bits are superior to standard HSS bits in terms of durability. They can be easily identified with their rich gold hue coating.
Titanium Aluminium Nitride
Coatings, such as titanium-aluminium nitride (TiAlN), are highly versatile and widely used. Titanium, aluminium, and nitrogen make up TiAlN as a compound. As a result, heat and oxidation are not a problem for the coating, making drilling faster. 4pcs HSS Countersink Chamfering Drill Bit Set for Wood, Iron, Aluminum
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Plastics |
Aluminium |
Copper |
Brass |
Bronze |
Plain Carbon Steel |
Cast Iron |
Stainless Steel |
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| Standard metal |
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| Industrial Metal |
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| Titanium |
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| Turbo Metal |
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| Cobalt |
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Size
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Range
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Head Size
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Overall Length
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Shank Diameter
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5#
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2-5mm
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10mm
|
45mm
|
6mm
|
|
10#
|
5-10mm
|
14mm
|
48mm
|
8mm
|
|
15#
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10-15mm
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21mm
|
65mm
|
10mm
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20#
|
15-20mm
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28mm
|
85mm
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12mm
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25#
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20-25mm
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35mm
|
102mm
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15mm
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30#
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25-30mm
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44mm
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115mm
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15mm
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35#
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30-35mm
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48mm
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127mm
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15mm
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40#
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35-40mm
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53mm
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136mm
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15mm
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50#
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40-50mm
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60mm
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166mm
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20mm
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