History of Cincinnati Tool Co., Hargrave Co., Warren Tool Corp., Warren Tool Group

Cincinnati Tool Company, Hargrave Company, and their successors manufactured masonry and other chisels, drill bits, and a wide variety of clamps.
Hargrave The Cincinnati Tool Co. Catalog 39-B in full color

1877 Cincinnati Tool Co. founded, eventually owned by Edward Hollister Hargrave (1859-
1912) and then his son John Morris Hargrave (1889-1975).

Edward H. Hargrave obituary 1912

1901 Located in Cincinnati, OH, operated by E.H. Hargrave.

1911 Cincinnati Tool Co. located in Norwood, OH.

1912 Google Books

1915 Google Books

1925 Changed name to Hargrave Co., operated at 1951 Waverly Ave., Norwood, Ohio by John Morris Hargrave.

Hargrave catalog page, masonry chisels 

Jan. 1962  Acquired by Warren Tool Corp., of Warren, Hiram, and Garrettsville, Ohio. Warren also owned Columbian vises, Ken-Tool automotive, Kal-Equip Co., Iron City Tool Works, and Quikwerk.

1970? The Warren Group established as Warren Tool's marketing division for all manufacturing operations.

1994 Warren Tool was sold to Wilton Corp., Palatine, IL, and continued to operate as Warren Tool Group.

2002 “In 2002, the Wilton Tool Company and…Warren Tool were acquired by WMH Tool Group (Walter Meier Holding Company AG).” The Warren Tool Group trademark held by Warren Tool Corp. was cancelled in 2002.

2014 “…Tenex Capital Management New York City, NY acquired the Jet, Powermatic and Wilton brands from Walter Meier and changed the company name to JPW Industries….”
Wilton Tools Company History

Wilton Hargrave clamps and chisels are currently for sale at industrial suppliers and Amazon, but are not on Wilton’s website. At least 2 Hargrave trademarks have expired.