HSS4241 Countersunk Drill Bit Set for Steel 3 Flute 90 Degree 6pcs

Countersunk Drill Bit Set for Steel 3 Flute 90 Degree 6pcs, 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

HSS4241 Countersunk Drill Bit Set for Steel 3 Flute 90 Degree 6pcs Specifications
Head Diameter *Shank Diameter * Length
6.3MM: 6.3MM*5MM*37MM
8.3MM: 8.3MM*6MM*40MM
10.4MM:10.4MM*6MM*39MM
12.4MM:12.4MM*10MM*46MM
16.5MM:16.5MM*10MM*47MM
20.5MM:20.5MM*10MM*47MM
Material:HSS4241
Package Included:
6pcs Three edge chamfering

[Wide application]: This counter sink bit Suitable for workpieces with hardness less than 45HRC, such as carbon steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc.(Not Great for Stainless Steel）[Efficiency]: this wood metal drilling bit has a one-piece design, which makes the chips generated during the chamfering process more convenient, and will not delay work efficiency due to tool blockage.[HSS 4231]: each metal countersunk drill bit is made from high quality HSS material, countersink drill bit set is excellent in heat, corrosion and rust resistance.[Ease of use]: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds.including 6 most popular sizes: : 6.3mm(1/4”), 8.3mm(5/16”), 10.4mm(2/5”), 12.4mm(1/2”), 16.5mm(5/8”), 20.5mm(4/5”).Shank: round shank.Not recommended to use hand drills.
Great gift for man DIYer . Don’t settle for less – choose our countersink drill bit set for a superior drilling experience.If you are not satisfied withthe functions or any other reasons, just return it to us and we’ll be happy to resolve any problems 5Pcs Durable Chamfer Tool Set Cobalt Steel Countersink Bits
High hardness, smooth chip processing, can once fulfill the chamfering, deburring, and cone processing. It is a professional chamfering tool for batch processing, used for chamfering round holes and edges.Adopts titanizing craftwork, greatly improves the deburring bit’s resistance and oxidation resistance, its wear resistance, high temperature resistance, cutting property

Types of Countersink Drill Bits
Aside from the fluted countersink, there are various types of countersink drill bits, including: 5Pcs Countersunk Metal Drill Bit Countersink Chamfer Tool Deburring

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.  4 Piece Taper Hole Chamfer HSS M35 Countersink Deburring Drill Bits

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.  6 Piece Titanium HSS 5 Flute Countersink Drills Set Crosshole Cutting Metal Tool Kit

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. 6Pcs 5-Flute Titanium Coated HSS Countersink Bit Set For Cross Hole

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.

 

Size	Range	Head Size	Overall Length	Shank Diameter
5#	2-5mm	10mm	45mm	6mm
10#	5-10mm	14mm	48mm	8mm
15#	10-15mm	21mm	65mm	10mm
20#	15-20mm	28mm	85mm	12mm
25#	20-25mm	35mm	102mm	15mm
30#	25-30mm	44mm	115mm	15mm
35#	30-35mm	48mm	127mm	15mm
40#	35-40mm	53mm	136mm	15mm
50#	40-50mm	60mm	166mm	20mm