4 ms·
Good HSS drill bits like Wedevåg are cheap by proportion and can last 24h in tough materials like acid-resistant stainless steel under optimal conditions. Once
by ganzuul 7y ago
Good HSS drill bits like Wedevåg are cheap by proportion and can last 24h in tough materials like acid-resistant stainless steel under optimal conditions. Once dull you can just touch them up in a sharpener. Carbide bits last longer and do quicker work but are expensive.
- TeMPOraL 7y agoToday. I doubt that was the case in 1940 or even in 1980, especially on the Soviet side.