Hss Iron Aluminum Alloy Round Drill Bit

1. Sharp teeth, small vibration, quick balance when drilling, making operation more stable
2. Newly designed chip removal groove, faster and more efficient chip removal, can quickly remove iron chips during processing
3. The center drill with sharpened blade has more accurate positioning, sharp use, efficient and labor-saving
4. Universal triangular handle, effectively prevents slipping during work, suitable for chucks of 10mm and above