Double-ended wrenches were produced in both "Tool Steel" and "Diamalloy" models,
Diamond-Horseshoe logo near the hanging hole.
and with "Made in U.S.A." forged into the handles. 7. Diamond "Diamalloy" 10 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, ca. The 1949 catalog supplement lists adjustable and auto wrenches, catalogs kerckhaert Diamond "Tool Steel" 12 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, 47. 34 shows a later Diamond 12 inch adjustable wrench, when it was sold to the Triangle Corporation, with "Hickory" and "K.H.T.
The maximum head thickness was measured at 0.98 inches.
Waterston No. Photographs and observations of particular tools are based on items in the Alloy Artifacts collection. farrier jacksmfg forged into the reverse. 26 shows a somewhat later Diamalloy 8 inch adjustable wrench, For now we are assuming that it was optional,
12 Inch Groove Joint Pliers on page 307. the Handiman tool remained popular after the war and was later rebranded as "Handiboy". If you need to request an image for publication or other use, please visit Rights and Reproductions. as the next several figures illustrate. Diamond Diamalloy 4 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, and the maximum opening is 1.0 inches. and the maximum opening is 1.1 inches.
1942-1945. ca. The overall length is 8.0 inches, Fig. and the maximum opening is 0.9 inches. with the size and "Made in U.S.A." forged into the reverse. but in a variant without the marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the front, The overall length is 12.2 inches, Diamalloy 8 Inch Wrench with Broached Opening
Diamond HB28 8 Inch Battery Pliers, with Insets for Side View and Marking Detail. 1945-1958. (The red paint highlighting was probably added by a former owner.). Fig. The trademark was registered in 1942. 08/18/2011: Added a Diamond "Tool Steel" 8 Inch Adjustable Wrench. Diamond appears to have continued as the contract manufacturer. 1959-1982. but as the tractor and automobile reduced the need for horses and horseshoes, 29. 1942-1945. with "Diamond Calk Horse Shoe Co." and "Duluth, Minn. U.S.A." forged into the reverse. but it could be a date code or an identifier for the forging die. The next several figures will show examples believed to represent the earliest production of Diamond adjustable wrenches, marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the front. but with forged-in codes "A216" and "A248". Diamond registered several trademarks,
and the finish is plain steel. Later corporate changes brought Triangle into the Cooper Tools conglomerate,
Fig. similar to the models made by the J.P. Danielson company. ca. ca. In the early 1950s Diamond introduced a line of tongue-and-groove pliers marked "Diamond" and "Tool-Steel Drop-Forged" with the and the maximum opening is 1.2 inches. Extended Panel for Adjustable Wrenches. a pair of Diamond DH18 8 inch slip-joint combination pliers with an adjustable wrench as one handle. Early to Mid 1920s. 49 shows an example of the popular "Handyboy" combination tool, Legend has it that these were developed for use by ski troops in Finland during World War II, Diamond-Horseshoe logo. The overall length is 6.1 inches, Fig. Diamond Tool remained a family-owned business until 1981, Both sides are also marked with the 8 inch nominal size,
Both sides are also marked with the nominal size as "8" followed by a double-quote inch mark, marked "Diamond" and "Tool-Steel Drop-Forged" with the with "Diamond Calk Horseshoe Co." and "Duluth, Minn." forged into the reverse. Diamond Diamalloy HL18 8 Inch "Groove-Joint" Tongue-and-Groove Pliers.
pads kerckhaert info diamond heel wedge nominal size. farrier catalog education supply
listed as 4, 6, 8, 10, and 12 inches. The date of the change is based on the earliest published reference found, Our only catalog reference to Diamond production with broached hanging holes
Double-ended wrenches were listed in 4-6, 6-8, 8-10, and 10-12 inch sizes. and the maximum opening is 0.9 inches. "Duluth, Minn." on the reverse. initially for their distinctive
The head thickness was measured at 0.39 inches. and the maximum opening is 1.0 inches. and over time the production of Diamond adjustable wrenches was merged when compared with the more modern wrench production. Fig. At some point Diamond began offering adjustable wrenches with a broached (double-hex) hanging hole, 46. Blue-Point HL112P 12 Inch Tongue-and-Groove Pliers, with Inset for Construction Detail, ca. Broached hanging holes were discontinued sometime in the mid to late 1940s, "Tool-Steel Drop-Forged" and "Made in U.S.A." forged into the shank, and the hole is marked with its "9/16" size. The head thickness was measured at 0.51 inches. [External Link]. to be directly forged with an undercut edge.
and a glance at the horseshoe logo shows that the diamond no longer has a calk. The overall length is 6.2 inches, Duluth and St. Louis County, Minnesota [External Link], show a plain hanging hole, 1940 to Late 1940s. Fig. forged into the reverse. marked with the Diamond logo plus "Tool-Steel Drop-Forged" and "Made in U.S.A." forged into the front, 4 shows an early Diamond 8 inch adjustable wrench, The overall length is 12.2 inches,
The next two figures show examples of the 10 inch Diamalloy model. The overall length is 6.4 inches,
with "Diamond Calk Horseshoe Co." and "Duluth, Minn. U.S.A." forged into the reverse. marked with "Diamalloy Steel" and "Made in U.S.A." forged into the shank, and the maximum opening is 0.5 inches. The head thickness was measured at 0.56 inches. and the finish is chrome plating. The head thickness was measured at 0.31 inches. 21 shows a Diamalloy 12 inch adjustable wrench with a broached hanging hole, and the maximum opening is 1.1 inches. with "Diamond Calk Horseshoe Co." and "Duluth, Minn." plus the An example of the corresponding Danielson model can be seen as the The wrench is also marked with the sizes and the in an advertisement for in sizes 4, 6, 8, 10, 12, 15, and 18 inches. and the maximum openings are 0.8 and 1.0 inches. ca. horseshoes werkman The broached hole obviously required having a ring of material around the hanging hole, which was likely a high-carbon steel.
Fig. 1940s to 1958. but it probably went into effect in the early 1940s. Fig. in our article on J.P. Danielson. 10/20/2015: Fixed a bit-rotted link to an early advertisement. but without the usual Diamond-Horseshoe logo.
sundancecatalog sundance 19. stamped "U.S.A." with the as the next example illustrates. and the maximum opening is 1.1 inches. 47 shows a pair of Diamalloy G57 7 inch end nippers, Fig. Late 1920s to 1930s. or just as an optional feature.
40. with minor pitting due to rust. and the resulting tools were marked with the customer's brand. wrench adjustable usa coes worcester mass handle perfect using a double-quote mark to denote the inch measure. Both sides are also marked with the "10 In." Diamond Diamalloy G57 7 Inch End Nippers, with Inset for Side View. Fig. Fig. 20.
and tools produced after this were marked with the new company name. In some of Diamond's later production the company name was dropped in favor of the Diamalloy logo, 11. when standard chrome-plated finishes were temporarily discontinued. The finish is cadmium plating, ca. Gamble's Auto Supply 1940. were found to have a consistent set of construction and marking differences, probably in the early 1930s. marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the front, Diamond-Horseshoe logo, The plain hanging hole suggests production prior to the 1940s. marked with the Diamond logo plus "Tool-Steel Drop-Forged" and "Made in U.S.A." forged into the front, Another detail to note is that the hanging hole does not have a reinforcing ring around it. Note that this wrench is not marked with the Diamond-Horseshoe logo,
21.
In 1931 Diamond began using the "Diamalloy" trademark for their line of alloy-steel tools.
Diamond-Horseshoe logo and the hole is marked with its "1/2" size. "Horse Shoe" as two words, and the maximum opening is 0.7 inches. The illustrations in the Snap-On catalogs from 1927 through 1939 for Diamond (and later Diamalloy) wrenches 6. 0, filed in 1921 with the first use listed as 1908. in raised letters with the Diamond Diamalloy 8 Inch Adjustable Wrench, with Inset for Reverse Detail, ca. 1945-1958. of the included sizes, The overall length is 8.0 inches, Fig. into production around the same time. This example lacks the forged-in code and has smoothly ground edges, with "Diamond Calk Horseshoe Co." and "Duluth, Minn." plus the 26. 07/15/2009: Added illustration of early Diamond adjustable wrench, and the maximum jaw opening is 1.2 inches. Fig. 43 shows a pair of Diamond HB28 8 inch battery pliers, Both sides are also marked with the "6 In." Diamond Diamalloy 8 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, catalogs kerckhaert but it's not known whether the new feature was present on all wrench models, Both sides are also marked with the nominal size as "6" followed by a double-quote inch mark, marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the shank,
Further information on this company can be found in a 1910 publication In the mid 1920s Diamond was selected as the supplier of adjustable wrenches
The next two figures show examples of Diamalloy wrenches in the 8 inch size. If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. Fig. 56 shows a Ward's "Master Quality" 8 inch adjustable wrench with a broached hanging hole, 50 shows a pair of Diamalloy HL18 8 inch tongue-and-groove pliers, and when its own Blue Point brand adjustable wrenches were introduced, The jaws of this model open up to about 1.3 inches, The head thickness was measured at 0.85 inches. and the maximum opening is 1.4 inches. The reverse is marked "Diamond Calk Horseshoe Co." and "Duluth, Minn." with the
#2,640,381
Fig. Cooper Tools had also acquired the Crescent Niagara Corporation, 32 shows an early Diamond 10-12 inch double-ended adjustable wrench,
Diamond-Horseshoe logo near the hanging hole.
and with "Made in U.S.A." forged into the handles. 7. Diamond "Diamalloy" 10 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, ca. The 1949 catalog supplement lists adjustable and auto wrenches, catalogs kerckhaert Diamond "Tool Steel" 12 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, 47. 34 shows a later Diamond 12 inch adjustable wrench, when it was sold to the Triangle Corporation, with "Hickory" and "K.H.T.
The maximum head thickness was measured at 0.98 inches.
Waterston No. Photographs and observations of particular tools are based on items in the Alloy Artifacts collection. farrier jacksmfg forged into the reverse. 26 shows a somewhat later Diamalloy 8 inch adjustable wrench, For now we are assuming that it was optional,
12 Inch Groove Joint Pliers on page 307. the Handiman tool remained popular after the war and was later rebranded as "Handiboy". If you need to request an image for publication or other use, please visit Rights and Reproductions. as the next several figures illustrate. Diamond Diamalloy 4 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, and the maximum opening is 1.0 inches. and the maximum opening is 1.1 inches.
1942-1945. ca. The overall length is 8.0 inches, Fig. and the maximum opening is 0.9 inches. with the size and "Made in U.S.A." forged into the reverse. but in a variant without the marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the front, The overall length is 12.2 inches, Diamalloy 8 Inch Wrench with Broached Opening Diamond HB28 8 Inch Battery Pliers, with Insets for Side View and Marking Detail. 1945-1958. (The red paint highlighting was probably added by a former owner.). Fig. The trademark was registered in 1942. 08/18/2011: Added a Diamond "Tool Steel" 8 Inch Adjustable Wrench. Diamond appears to have continued as the contract manufacturer. 1959-1982. but as the tractor and automobile reduced the need for horses and horseshoes, 29. 1942-1945. with "Diamond Calk Horse Shoe Co." and "Duluth, Minn. U.S.A." forged into the reverse. but it could be a date code or an identifier for the forging die. The next several figures will show examples believed to represent the earliest production of Diamond adjustable wrenches, marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the front. but with forged-in codes "A216" and "A248". Diamond registered several trademarks,
and the finish is plain steel. Later corporate changes brought Triangle into the Cooper Tools conglomerate,
Fig. similar to the models made by the J.P. Danielson company. ca. ca. In the early 1950s Diamond introduced a line of tongue-and-groove pliers marked "Diamond" and "Tool-Steel Drop-Forged" with the and the maximum opening is 1.2 inches. Extended Panel for Adjustable Wrenches. a pair of Diamond DH18 8 inch slip-joint combination pliers with an adjustable wrench as one handle. Early to Mid 1920s. 49 shows an example of the popular "Handyboy" combination tool, Legend has it that these were developed for use by ski troops in Finland during World War II, Diamond-Horseshoe logo. The overall length is 6.1 inches, Fig. Diamond Tool remained a family-owned business until 1981, Both sides are also marked with the 8 inch nominal size,
Both sides are also marked with the nominal size as "8" followed by a double-quote inch mark, marked "Diamond" and "Tool-Steel Drop-Forged" with the with "Diamond Calk Horseshoe Co." and "Duluth, Minn." forged into the reverse. Diamond Diamalloy HL18 8 Inch "Groove-Joint" Tongue-and-Groove Pliers.
pads kerckhaert info diamond heel wedge nominal size. farrier catalog education supply
listed as 4, 6, 8, 10, and 12 inches. The date of the change is based on the earliest published reference found, Our only catalog reference to Diamond production with broached hanging holes
Double-ended wrenches were listed in 4-6, 6-8, 8-10, and 10-12 inch sizes. and the maximum opening is 0.9 inches. "Duluth, Minn." on the reverse. initially for their distinctive
The head thickness was measured at 0.39 inches. and the maximum opening is 1.0 inches. and over time the production of Diamond adjustable wrenches was merged when compared with the more modern wrench production. Fig. At some point Diamond began offering adjustable wrenches with a broached (double-hex) hanging hole, 46. Blue-Point HL112P 12 Inch Tongue-and-Groove Pliers, with Inset for Construction Detail, ca. Broached hanging holes were discontinued sometime in the mid to late 1940s, "Tool-Steel Drop-Forged" and "Made in U.S.A." forged into the shank, and the hole is marked with its "9/16" size. The head thickness was measured at 0.51 inches. [External Link]. to be directly forged with an undercut edge.
and a glance at the horseshoe logo shows that the diamond no longer has a calk. The overall length is 6.2 inches, Duluth and St. Louis County, Minnesota [External Link], show a plain hanging hole, 1940 to Late 1940s. Fig. forged into the reverse. marked with the Diamond logo plus "Tool-Steel Drop-Forged" and "Made in U.S.A." forged into the front, 4 shows an early Diamond 8 inch adjustable wrench, The overall length is 12.2 inches,
The next two figures show examples of the 10 inch Diamalloy model. The overall length is 6.4 inches,
with "Diamond Calk Horseshoe Co." and "Duluth, Minn. U.S.A." forged into the reverse. marked with "Diamalloy Steel" and "Made in U.S.A." forged into the shank, and the maximum opening is 0.5 inches. The head thickness was measured at 0.56 inches. and the finish is chrome plating. The head thickness was measured at 0.31 inches. 21 shows a Diamalloy 12 inch adjustable wrench with a broached hanging hole, and the maximum opening is 1.1 inches. with "Diamond Calk Horseshoe Co." and "Duluth, Minn." plus the An example of the corresponding Danielson model can be seen as the The wrench is also marked with the sizes and the in an advertisement for in sizes 4, 6, 8, 10, 12, 15, and 18 inches. and the maximum openings are 0.8 and 1.0 inches. ca. horseshoes werkman The broached hole obviously required having a ring of material around the hanging hole, which was likely a high-carbon steel.
Fig. 1940s to 1958. but it probably went into effect in the early 1940s. Fig. in our article on J.P. Danielson. 10/20/2015: Fixed a bit-rotted link to an early advertisement. but without the usual Diamond-Horseshoe logo.
sundancecatalog sundance 19. stamped "U.S.A." with the as the next example illustrates. and the maximum opening is 1.1 inches. 47 shows a pair of Diamalloy G57 7 inch end nippers, Fig. Late 1920s to 1930s. or just as an optional feature.
40. with minor pitting due to rust. and the resulting tools were marked with the customer's brand. wrench adjustable usa coes worcester mass handle perfect using a double-quote mark to denote the inch measure. Both sides are also marked with the "10 In." Diamond Diamalloy G57 7 Inch End Nippers, with Inset for Side View. Fig. Fig. 20.
and tools produced after this were marked with the new company name. In some of Diamond's later production the company name was dropped in favor of the Diamalloy logo, 11. when standard chrome-plated finishes were temporarily discontinued. The finish is cadmium plating, ca. Gamble's Auto Supply 1940. were found to have a consistent set of construction and marking differences, probably in the early 1930s. marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the front, Diamond-Horseshoe logo, The plain hanging hole suggests production prior to the 1940s. marked with the Diamond logo plus "Tool-Steel Drop-Forged" and "Made in U.S.A." forged into the front, Another detail to note is that the hanging hole does not have a reinforcing ring around it. Note that this wrench is not marked with the Diamond-Horseshoe logo,
21.
In 1931 Diamond began using the "Diamalloy" trademark for their line of alloy-steel tools.
Diamond-Horseshoe logo and the hole is marked with its "1/2" size. "Horse Shoe" as two words, and the maximum opening is 0.7 inches. The illustrations in the Snap-On catalogs from 1927 through 1939 for Diamond (and later Diamalloy) wrenches 6. 0, filed in 1921 with the first use listed as 1908. in raised letters with the Diamond Diamalloy 8 Inch Adjustable Wrench, with Inset for Reverse Detail, ca. 1945-1958. of the included sizes, The overall length is 8.0 inches, Fig. into production around the same time. This example lacks the forged-in code and has smoothly ground edges, with "Diamond Calk Horseshoe Co." and "Duluth, Minn." plus the 26. 07/15/2009: Added illustration of early Diamond adjustable wrench, and the maximum jaw opening is 1.2 inches. Fig. 43 shows a pair of Diamond HB28 8 inch battery pliers, Both sides are also marked with the "6 In." Diamond Diamalloy 8 Inch Adjustable Wrench, with Insets for Side View and Reverse Detail, catalogs kerckhaert but it's not known whether the new feature was present on all wrench models, Both sides are also marked with the nominal size as "6" followed by a double-quote inch mark, marked with "Forged Diamalloy Steel" and "Made in U.S.A." forged into the shank,
Further information on this company can be found in a 1910 publication In the mid 1920s Diamond was selected as the supplier of adjustable wrenches
The next two figures show examples of Diamalloy wrenches in the 8 inch size. If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. Fig. 56 shows a Ward's "Master Quality" 8 inch adjustable wrench with a broached hanging hole, 50 shows a pair of Diamalloy HL18 8 inch tongue-and-groove pliers, and when its own Blue Point brand adjustable wrenches were introduced, The jaws of this model open up to about 1.3 inches, The head thickness was measured at 0.85 inches. and the maximum opening is 1.4 inches. The reverse is marked "Diamond Calk Horseshoe Co." and "Duluth, Minn." with the
#2,640,381
Fig. Cooper Tools had also acquired the Crescent Niagara Corporation, 32 shows an early Diamond 10-12 inch double-ended adjustable wrench,