Rough boring heads and twin boring tools that are designed for ultimate performance and versatility. Small, medium and large diameter systems are available.
Our standard operating hours and holiday closures. Please refer to these schedules to ensure timely assistance for your industrial tooling needs and inquiries.
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Based on guarantees of non-use of Conflict Minerals obtained from our material suppliers, we hereby declare that, to the best of our knowledge, the products supplied by BIG DAISHOWA have been deemed to be free of any source materials originating from the Democratic Republic of the Congo (DRC), or an adjoining country.
A pilot or spot drill, also known as a starter drill, is typically required when the succeeding drill is longer than 10xD or smaller than Ø 1.00 mm. Starter drills can also be used to improve hole location due to their short, rigid geometries.