Abstract: This invention is a soft pack designed to carry less than 25 pounds and to comfortably transfer and evenly distribute weight carried in the pack from the shoulders and neck area to the gluteus maximus and hips (torso) of the user's body. Such transference and even weight distribution improves posture and prevents injuries associated with wearing backpacks. This load transfer from a weaker to a much stronger part of the body is accomplished by The Posture Friendly Backpack's major suspension elements: S-shaped shoulder straps that originate at the top seam of the pack and extend outward from each other at about a 45-degree angle; a wide, padded lumbar belt; a tub bottom formed by a relatively stiff back panel, a relatively stiff bottom panel and two triangular or trapezoidal side panels that cause the bottom to extend up at an angle of about 60 degrees relative to the back panel.

Abstract: A drill is provided having opposed primary and secondary cutting edges extending perpendicular to the longitudinal axis of the drill. The primary cutting edge extends across the longitudinal axis of the drill to a terminus intermediate the longitudinal axis and the periphery of the drill. The secondary cutting edge extends inwardly from the periphery of the drill to a point intermediate the periphery and the longitudinal axis of the drill. The primary and secondary cutting edges are spaced from one another along the longitudinal axis so that the primary cutting edge leads the secondary cutting edge during a drilling operation. The primary cutting edge drills the inner part of the hole and the secondary cutting edge drills the outer part of the hole. The primary and secondary cutting edges are designed to generate substantially balanced forces about the longitudinal axis of the drill. Flutes extend from each cutting edge for efficient and reliable removal of chips.

Abstract: A cutting insert includes a planar body member formed unitary with peripheral ledges of smaller width than the body member, with the ledges being configured and aligned relative to the body member to achieve desired rake angles, both axial and radial as well as the clearance angle desired of the cutting geometry. In operation, each elongated ledge defines the cutting edge of the cutting insert and during operation of the cutting insert, the ledge is consumed and thus generates a fresh edge behind it along the entire length of the ledge such that the cutting process may be maintained continuous until the entire length of the ledge is consumed. The cutting insert may then be indexed to the next ledge cutting edge.