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.
Find answers to some of the most frequently asked questions about our products and services. We have organized the questions and answers into different categories to make it easy for you to find what you're looking for.
SPERONI Tool Presetters measure the cutting edges of your tools to assure they precisely match job specifications and are ready to be used in the machine.
CNC Tool holders are the interface between the machine spindle and the cutting tool. BIG DAISHOWA offers a wide variety of shanks common to the market.
BIG DAISHOWA offers a full line of high-precision cutting tools. Our cutting tools are the superior choice for increasing production capacity and quality.