HARFINGTON 5pcs Jobber Drill Bits 8.5mm (11/32") Black Nitride & Gold Titanium Coated High Speed Steel (HSS) 4341 Twist Drill Bits for Stainless Steel Copper Aluminum Alloy Metal
Product details
| Management number | 218790152 | Release Date | 2026/05/03 | List Price | US$5.48 | Model Number | 218790152 | ||
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| Category | |||||||||
- Size - Cutting edge diameter: 8.5mm / 11/32"; round shank diameter: 8.5mm / 11/32"; cutting edge length: 75mm / 2.95"; overall length: 115mm / 4.53"; split point: 135 degree (Fast cutting point penetrates quickly with less pressure and prevents walking on metal surfaces.)
- Material - 4341 high-speed steel contains high content of carbon and alloy elements, providing excellent cutting performance, high heat resistance, high hardness, wear resistance and durability. Suitable for applications requiring precise and efficient processing.
- Features - Black nitride and gold titanium dual coatings can apply lubricant better for smoother drilling and are more durable and corrosion resistant. Large spiral grooves facilitate the export of metal chips, saving time an effort.
- Applications - Drill bits can drill clean and accurate holes in stainless steel, cast iron, carbon steel, aluminum alloy, copper and brass. Cutting edges provide neat and smooth cuts. NOT suitable for tiles, concrete, walls, stones.
- Note - Used with handheld drills, drilling machines, bench drills, machining centers, CNC lathes. Use an appropriate lubricant (such as cutting fluid or oil) to reduce friction and heat build-up. Make sure the drill bit is tightened securely, and keep the drill bit perpendicular to the work surface.
| Brand Name | HARFINGTON |
|---|---|
| Shank Type | Straight |
| Unit Count | 5.0 Count |
| Part Number | hta231128hh000149 |
| Finish Types | Nitride & Titanium Coated (TiN Coated) |
| Manufacturer | HARFINGTON |
| Material Type | 4341 High Speed Steel (HSS) |
| Tool Flute Type | Spiral |
| Cutting Angle String | 135 Degrees |
| Surface Recommendation | Metal |
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