HARFINGTON 19mm Drill Bit 1/2" Reduced Shank 3-Flat 4241 High Speed Steel Nitriding Black 118° for Soft Materials Wood Plastic Iron Copper Aluminum

HARFINGTON 19mm Drill Bit 1/2" Reduced Shank 3-Flat 4241 High Speed Steel Nitriding Black 118° for Soft Materials Wood Plastic Iron Copper Aluminum

Size - Cutting edge diameter: 19mm, shank diameter: 1/2 inch, flute length: 3 inch, split point: 118° Material - 4241 high-speed steel offers hardness and wear resistance. Combined with the nitriding black surface treatment, which enhances wear and corrosion resistance, prolongs the service life of twist drills. Feature - With a drill bit's sharper 118° angle, twist drills can quickly and efficiently drill into materials, making them the preferred choice for general metal and wood drilling, as well as common tasks like DIY, woodworking, and home repairs. Application - the drill bit is suitable for soft metals and woodworking projects, making it widely applicable in daily operations such as home maintenance. Additionally, it is effective for processing medium-hardness materials, including copper, aluminum, iron, plastic, and wood. Note - For optimal performance with a reduced shank drill bit, ensure a 90-degree vertical angle is maintained between the drill and the material. For larger holes, a small guide hole should be drilled first to ensure precision.. Caution: This drill bit is unsuitable for stainless steel. Specifications:
-Cutting Edge Diameter: 19mm
-Shank Diameter: 1/2"
-flute length: 3 inch
-Total Length: 6 inch
-Split Point: 118°
-Material: 4241 high-speed steel


1. The 4241 high-speed steel material provides hardness and wear resistance. Furthermore, the black nitride surface treatment enhances both wear and corrosion resistance, significantly extending the drill bit's lifespan.

2. With their sharper 118° angle, twist drills can quickly and efficiently drill into materials, making them the preferred choice for general metal and wood drilling, as well as common tasks like DIY, woodworking, and home repairs.

3. These drill bits are suitable for soft metals and woodworking projects, making them popular for DIY tasks and home maintenance. They are well-suited for processing medium to low-hardness metals, such as common steel, aluminum alloy, and copper, as well as for drilling wood and plastic materials.

4. The relationship between the drill bit and speed is critical: larger bits require lower RPM, while smaller bits need higher RPM. Additionally, harder materials demand lower RPM for better cutting performance and extended drill bit life.

5. For optimal performance with a reduced shank drill bit, ensure a 90-degree vertical angle is maintained between the drill and the material. For larger holes, a small guide hole should be drilled first to ensure precision.. Caution: This drill bit is unsuitable for stainless steel.