Osg 1615014151 Thread Forming Tap M14x1.50 Metric Fine

Product Description

The OSG 1615014151 is a thread forming tap designed for M14x1.50 metric fine threading in blind and through-hole applications. Unlike cutting taps, thread forming taps cold-form threads by displacing material rather than cutting it, producing stronger threads with no chips. This tap is manufactured from cobalt high-speed steel and coated with TiCN for increased surface hardness and heat resistance. It carries a 6H class of fit with a D11 thread limit and features a modified bottoming chamfer of 2.5 to 3 threads, making it well suited for threading close to the bottom of blind holes. Overall length is 3.937 inches with a thread length of 0.787 inches. It belongs to the OSG EXOPRO XPF-OIL series and is intended for use by machinists and CNC operators in production and job shop environments.

This tap is engineered for a broad range of ferrous and non-ferrous materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloy, and titanium. It is suited for both blind hole and through-hole threading operations where chip evacuation is a concern or where thread strength is critical. The coolant-through design supports high-speed tapping in CNC machining centers where internal coolant delivery is available. Typical applications include automotive, aerospace, and industrial component manufacturing where M14x1.50 metric fine threads are specified.

Key Features

• Thread forming construction displaces material to produce chip-free, stronger threads
• Cobalt high-speed steel substrate provides elevated heat and wear resistance
• TiCN coating increases surface hardness and reduces friction for extended tool life
• Modified bottoming chamfer (2.5 to 3 threads) allows threading close to blind hole bottoms
• Coolant-through design supports internal coolant delivery in CNC applications
• Right-hand thread direction, D11 thread limit, 6H class of fit for precise thread quality

Compatibility

Rated for use in aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloy, and titanium. Suitable for blind hole and through-hole threading operations requiring M14x1.50 metric fine threads at a 6H class of fit.

Installation Notes

This tap is installed and driven by a machinist or CNC operator using a tapping head, rigid tap holder, or synchronous tapping cycle on a CNC machining center. Ensure the spindle speed and feed rate are matched to the material and tap specifications before running. Thread forming taps require a pre-drilled forming hole diameter specific to the material and thread size — use the correct form tap drill chart for M14x1.50 to avoid tap breakage or undersized threads. Always apply appropriate tapping fluid or confirm coolant-through flow is active before tapping.