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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.

We offer a unique line-up of economical accessories designed to optimize your productivity and help you operate at peak efficiency.

BIG DAISHOWA offers a wide variety of high-precision nuts for many types of tool holders and applications.

BIG DAISHOWA offers many sizes of highly accurate collets to offer a broad clamping range to accommodate most standard tool diameters.

Optimize your spindle with BIG DAISHOWA's Angle Heads & Speed Increasers. Harness your machine's current capabilities by adding an Angle Head.

Precision measuring instruments and equipment help make your work flow faster, more accurate, and more efficient.

Regular spindle measurement is a necessity. Periodical measurement of the spindle retention force avoids unknown reduced rigidity.

Angle Heads increase productivity by easily changing the angle of the cutter while utilizing the original workpiece setup.

Universal Type Angle Heads, with an adjustable spindle combine vertical and horizontal operations on one machine.

Pilot & spot drills are often necessary for applications where the succeeding drill is longer than 10xD, or smaller than Ø 1.00 mm.