90° Angled 3 Flutes Countersink Drill Bit HSS For Wood Metal Chamfering

90° Angled 3 Flutes Countersink Drill Bit HSS For Wood Metal Chamfering, 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

90° Angled 3 Flutes Countersink Drill Bit HSS For Wood Metal Chamfering Specifications
90 degree chamfer, high precision and sharp, the chamfer has no burrs.
High hardness, smooth chip processing, chamfering, deburring and cone processing can be achieved.
It is a professional chamfering tool used for chamfering round holes and edges.
Cutting Angle 90° (120°, 60 °, 82° are Available)
Shank Type Round Shank (Hex Shank, Taper Shank, Tri-Flat Shank, Weldon Shank, Long Shank are Available)
Surface Finish White (Black and White, Tin-Coated, Black, Black and Yellow are Available)
Package 1 Piece in One Plastic Box (Double Blister Card is Available)

Eliminate chatter and vibration – all tips are angled at 90° for sharp and precise countersinks. The cutting edge is hardened and polished to improve sharpness. Chatter-free three-cutting edge design, with staggered cutting teeth to ensure free chip flow and fast chatter-free cutting.

The drill is made of high-speed steel and coated with super-hard titanium alloy, which is durable, high temperature resistant and can be used for a long time.

1.Multi-Purpose Masonry drill bits drill through just about any type of material – brick, block, tile, metal, wood, plastic and marble – they’ll even drill through multiple materials at the same time.
2.Tough tungsten carbide makes bit suitable for multi-material applications. Sharp diamond-ground edges deliver high drilling speed, even in hard materials. Optimized drilling for good dust clearance in multiple materials. 8PCS Countersink Chamfer Tool Deburring Tool Metal Wood Drill Bits Set
3.Premium carbon steel with heat treatment improves core strength for maximum durability and extended life.
4.Copper braze material gives high heat resistance for reduced tip loss.
5.R flute ensures fast, efficient removal of drilling dust and debris to increase speed and prevent clogging.
6.Round shank for using in corded and cordless rotary drills.

Standard Countersink Angle in Different Uses
There are several countersink angles, and they all have different uses. However, below are the most common countersink angles and their uses.

standard countersink angle

60° (Deburring)
The primary purpose of this countersink angle is to remove burrs or sharp edges from the screw area of a metal part. After deburring, the metal has smoother edges.

75° (Rivet Heads)
The rivet head angle is ideal for most rivet head types, including drive, flush, friction-lock, Oscar, self-piercing, structural steel, and solid rivets.

82° and 90° (Countersunk Screw)
There are two angles for countersunk screws. However, the exact angle chosen is a function of the industry countersink screw standard. For instance, the US standard is 82°, while other countries and regions use 90° countersunk screws and the same angles.

120° (Countersinking Sheet Metal Rivets)
The type of rivets used for sheet metals are the thinner and blind Rivets, often requiring a countersinking angle of 120°. This angle requirement is due to their use in joining sheet metals.  0-flute Hex Shank Countersink Drills Set For Woodworking Hole Opener

 

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