Kellys
HACKER KELLYS are available in square, hexagon and round fluted mill types. Hacker Forged Kellys are made from AISI 4142-H modified alloy steel to API specifications and normalized and tempered to 285/341 Brinell hardness. Available in 36' to 40' lengths in 3-1/2", 4-1/4" and 5-1/4" sizes. Mill Kellys are available in 3", 3-1/2", 4-1/4" and 5-1/4" sizes in lengths to 31'. Mill chemical and physical certifications furnished with each Kelly upon customer request. Connections furnished to meet customer requirements.
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