ดอกสว่านเจาะเหล็ก แบบชุด(High speed Steel Roll Forged Jobber Drills Model SEN-025
High Speed Steel Roll Forged Jobber Drills Roll forged from HSS , ensuting uninterrupted grain structure. This provides execptional strength and durability. Tips are ground for effective cutting. Suitable for drilling wood,plastic, carbon and plain steels where the cutting efficiency of ground flute is ont required.


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