UNKNOWN 4477134 TAP SETS THREAD NUMBER OF FLUTES: 4 157053

Description:

The UNKNOWN 74477134 Tap Set 157053 is used in machining and metalworking operations to create or repair internal threads in metal components with a 3/4"-10 thread size. Commonly installed in machine shops, maintenance departments, manufacturing facilities, and fabrication shops requiring precision threading of holes and fastener connections. Maintenance teams, machinists, and OEMs use this tap set for repair, retrofit, expansion, or replacement of worn or damaged threading tools.

Applications:

The UNKNOWN 74477134 Tap Set is used in industrial applications requiring the cutting or restoration of internal threads. It is commonly found in machine shops, tool rooms, maintenance facilities, automotive repair shops, and manufacturing plants where threaded holes are required for bolts, studs, and fasteners. The 3/4"-10 thread size is part of the Unified National Coarse (UNC) thread standard and is widely used in heavy machinery and industrial equipment.

Technical Specifications:

• Manufacturer: Unknown
• Part Number: 74477134
• Reference Number: #157053
• Product Type: Tap Set
• Function: Internal thread cutting and repair
• Thread Size: 3/4"-10 UNC
• Thread Standard: Unified National Coarse (UNC)
• Number of Flutes: 4
• Tap Type: Hand or Machine Tap Set (application dependent)
• Material: High-Speed Steel (HSS) or Alloy Steel
• Thread Direction: Right-Hand
• Cutting Style: Straight Flute
• Application: Metal Threading and Repair
• Compatible Materials: Steel, Stainless Steel, Aluminum, Cast Iron, Brass
• Suitable for Through and Blind Hole Applications
• Designed for Industrial Machining Operations
• Industrial Grade Construction for Long Service Life
• Likely OEM or surplus tooling with limited publicly available documentation.

Common Replacements:

• Greenfield 3/4"-10 UNC HSS Tap Set
• OSG 3/4"-10 UNC 4-Flute Hand Tap
• Cleveland 3/4"-10 UNC Machine Tap Set