Super Dig is a faster way to dig a large amount of blocks away from right in front of you. It can be used by holding down the Ctrl button and pressing your RMB (Right Mouse Button). Super Dig uses a high amount of your suits energy. The exact amount of energy used per block is still to be determined.
Super Dig is also the only way to dig Ores without a extractor though at a very high cost of energy and ore lost through inefficiency. It takes 9 Super Digs to detroy an ore block with the Mk1 Build Gun; higher tiers need less Super Digs. However, certain materials, such as crystal deposits cannot be mined without the v2 upgrade, and other items, such as hardened resin, cannot be mined at all.