PTI = Power Tool Institute

"With the vision to unify and educate others about power tools, the Power Tool Institute (PTI) has established itself as the preeminent organization for building global understanding of power tools and for maintaining high standards of safety in the industry.

Its members represent market-leading brands in the areas of portable and stationary power tools. From table saws to portable drills, from shapers to sanders, the Power Tool Institute's members are committed to improving the industry and to being the premier resource for power tool education.

Founded in 1968, PTI's primary objectives are to promote the common business interests of the power tool industry; to represent the industry before government; to educate the public as to the usefulness and importance of power tools; to encourage high standards of safety in the manufacture of power tools; and to prepare and distribute information about safe use of power tools."

"Here is a list of members and brand names
STANLEY BLACK & DECKER
BOSCH POWER TOOLS
DELTA | PORTER-CABLE
DEWALT
DREMEL
HILTI, INC.
HITACHI KOKI, U.S.A., LTD
MAKITA USA, INC.
METABO CORPORATION
MILWAUKEE ELECTRIC TOOL CORPORATION
ROBERT BOSCH TOOL CORP.
ROTOZIP POWER TOOLS
RYOBI TECHNOLOGIES, INC.
SKIL POWER TOOLS
TECHTRONIC INDUSTRIES CO., LTD."

"The new test method, agreed upon by all major power tool companies in the Power Tool Institute, is the industry’s first standard to measure torque in drills." (Makita)