非洲地区采购需求：铣刀、切削刀具、车刀、刀柄、立铣刀、丝锥

I'm looking for cutting tools with specific characteristics. For square inserts, I need options that offer high edge strength for durability during machining tasks. Additionally, I'm interested in round inserts that excel in roughing and handling interrupted cuts efficiently. Lastly, octagon inserts with strong corners would be ideal for high-feed operations. Please provide relevant options and any details on performance and availability. Thank you!