Big Daishowa (formally Big Kaiser)
At BIG DAISHOWA (formally Big Kaiser), their mission is to find the best tooling solution for you and deliver it with a personal commitment of efficient and measurable performance improvements. They manufacture top-level tooling that will improve your efficiency in your applications and offer the finest collet toolholders in the industry. Productivity distributes their full line of collet toolholders including, HSK, BT and CAPTO types. Please click the links below to browse their full line of tools.
HSK Collet Chucks
HSK is a German acronym that means "hollow taper shank" and serves as the hollow taper interface that connects to HSK machines using flange contact. These toolholders include types A, E and F. These include 25, 32, 40, 50, 63, 80, 100 and 125 sizes.
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CAPTO Collet Chucks
The BIG CAPTO tool holder system is a dual contact modular turning and rotating system that improves the performance of machining tools. The BIG CAPTO modular tooling system offers better efficiency, material selection, and heat treatment.
BT Collet Chucks
BT tooling uses the same NMTB body taper as CAT40 but differs from CAT40 in that they are symmetrical around the spindle axis. This gives BT tooling greater stability and balance at high speeds. BT holders also use metric thread pull studs.
