Handiworks Information Page Everyting you always wanted to know about Handiworks cordless drills.
Kinetic Energy Calculator Calculate how much kinetic energy your weapon is capable of, then brag to your friends!
Torque / AH Calculator Steve Judd's excellent calculator (under the tools menu)
OnlineMetals Weight Calculator Calculates the weight of common shapes for various materials.
Unit Conversion Easily convert between common units.