Reference:
The following information is from:
Evidently this type of tool was discontinued by the time catalogue No. 59 was published in 1959.
"Crucible Tool Steel. Head and Cutting Edge Polished." (per catalogue No. 36)
"Silicon-Manganese Alloy Tool Steel. Head and Cutting Edge Polished." (per catalogue No. 37)
Catalogue listings:
Diamond
Point Chisels: Width of Cutting Edge: 1/8." Length: 5."
Size Steel: 1/4." Wt. per dozen: 1 lbs. Price per dozen: $2.50 (from
catalogues No. 36, 37)
Diamond
Point Chisels: Width of Cutting Edge: 3/16." Length: 5."
Size Steel: 5/16." Wt. per dozen: 1-1/2 lbs. Price per dozen: $2.70
(from catalogues No. 36, 37)
Diamond
Point Chisels: Width of Cutting Edge: 1/4." Length: 5-1/4."
Size Steel: 3/8." Wt. per dozen: 2 lbs. Price per dozen: $3.25 (from
catalogues No. 36, 37)
Diamond
Point Chisels: Width of Cutting Edge: 5/16." Length: 5-3/4."
Size Steel: 1/2." Wt. per dozen: 4 lbs. Price per dozen: $3.80 (from
catalogues No. 36, 37)
Diamond
Point Chisels: Width of Cutting Edge: 3/8." Length: 6-1/4."
Size Steel: 5/8." Wt. per dozen: 6-1/2 lbs. Price per dozen: $5.20
(from catalogues No. 36, 37)
Diamond
Point Chisels: Width of Cutting Edge: 1/2." Length: 7."
Size Steel: 3/4." Wt. per dozen: 9-1/2 lbs. Price per dozen: $7.00
(from catalogues No. 36, 37)
The prices listed above are for historical purposes only; listed items are not being offered for sale.