6Pcs HSS Countersink Drills Set 90 Degree Countersink Hole Center Punch Tool

6Pcs HSS Countersink Drills Set 90 Degree Countersink Hole Center Punch Tool, M42 M35 HSS Countersink Drill Bits 90 Degree, Countersink HSS Drill Bits, HSS Combined Drill & Countersink Hole Cutters Drilling 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

6Pcs HSS Countersink Drills Set 90 Degree Countersink Hole Center Punch Tool Specifications
Material:High Speed Steels
Total length (mm): 45-49-50-56-61-65
Edges diameter (mm): 6.3-8.3-10.4-12.4-16.5-20.5.
Handle diameter (mm): 5-6-6-8-10-10
Note:
1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.
Package includes:
6Pcs Countersink Drill Bit
Three Flute 90 degree chamfering cutter, high concentricity of chamfering, no burr.
The product are made from HSS, durable, sharpness and wear-resistant.
Suitable for milling cutter, drilling machine, chamfering machine and other machine tools Processing die steel, rail, chamfering, etc.
Great for sinking 90 Degree holes into wood and soft metals countersunk screws and fixings.
Suitable for DIY and general building/engineering using

HSS Countersink Drill Bits for countersinking screw holes in mild steel, plastics and non-ferrous metals. They are also suitable for working in wood, plywood, MDF and other man made boards. For use in both hand tools and power drills. Available in a size of 13mm with 90° angle.
This is ideal for cutting through metal, wood and plastic quickly and easily
Gives best results at low cutting speeds in steel, wood and plastic and light metals.
Through slot chip removal prevents chips from clogging in workpiece.

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.  Cobalt HSS Countersink Drills 90° Angle With Round Shank For Hole Chamfering
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.
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. M42 M35 HSS Countersink Drill Bits

As a metal drill bit manufacturer, our company produces hss steel bit made with precision cutting technology. We have expertise in producing High Speed ​​Steel (HSS) drill bit. These drill bits are precision engineered to meet the needs of a variety of drilling applications, ensuring optimal performance in a variety of materials. At the heart of our product offering are specialized high-speed steel (HSS) drill bits. Whether you’re working with metal, wood, or other materials, high-speed steel construction ensures longevity, making these drills a reliable choice for professionals and DIYers alike.  Combi-Magnetic 90 Degree HSS-E Multi Cutter Spotting Drills

An HSS (High-Speed Steel) drill bit is the most versatile and common type of twist drill bit, designed to cut through steel, aluminum, wood, and plastic. Built with a cylindrical shank to fit standard power drills, they are ideal for everyday site work and general-purpose drilling tasks.Common Types of HSS Drill BitsHSS-R (Rolled Forged): Black or gray, budget-friendly bits rolled under heat. Best for soft, non-demanding materials.HSS-G (Ground): Highly precise and sharp, completely machined from solid steel. They last longer and drill cleaner holes.HSS-TiN (Titanium Nitride Coated): These golden bits have reduced friction, allowing them to withstand higher speeds and cut faster without overheating.HSS-Co (Cobalt): Usually containing 5% cobalt, these bronze-colored bits are designed for heavy-duty, high-heat applications like drilling through stainless steel or cast iron.   90° Double Ended Spotting Drill

 

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