Meeting the demands of surface mount technology (SMT) electric printed circuit boards, these micro drill series are used for through holes and blind via hole drilling. Made from hyper fine grain carbide alloy, this is an extremely robust product range.

Under cut type drills for a wide range of applications that need either small through holes or via interconnects. The design balances the needs for improved inner hole wall quality, while maintaining good hole registration accuracy. Made from a tungsten carbide alloy with a high modulus of elasticity, this range is perfect for today’s demanding high density multi-layer boards.

ST- STB series: universal and economical drill for a wide range of materials. UM series: to improve the hole wall quality in multi-layer boards. ID series: a unique drill with a “chip breaker” to help prevent “bird nesting” and a web thinning that greatly reduces the thrust load on the spindle.

This under cut drill has special geometry designed for slot drilling. Using a web taper design for maximum rigidity, the drill can be used at high in-feed rates for increased productivity. Even when slots requiring length two times of drill diameter, this range of high precision drills gives excellent results.