Osg 1635012751 Thread Forming Tap M12x1.75 6H Ticn

Product Description

The OSG 1635012751 is a thread forming tap designed for M12x1.75 metric coarse threading in demanding machining applications. It features a modified bottoming chamfer with 2.5 to 3 chamfered threads, a 6H class of fit, and a D11 thread limit. The tap is manufactured from cobalt high speed steel and coated with TiCN for extended tool life in abrasive and hard materials. With an overall length of 110 mm (4.3307 inches) and a thread length of 17 mm (0.6693 inches), it is suited for both blind hole and through-hole threading operations. Machinists and tool and die professionals use this tap in production environments requiring precise metric internal threads.

This tap is built for a wide range of workpiece materials, including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloy, and titanium. It is appropriate for both blind hole and through-hole threading scenarios on CNC machining centers, manual mills, and tapping machines. The modified bottoming chamfer allows threading closer to the bottom of a blind hole compared to standard plug or taper chamfers, making it a practical choice when thread depth is constrained by part geometry.

Key Features

• M12x1.75 metric coarse thread form, 6H class of fit for standard metric tolerance requirements
• Modified bottoming chamfer (2.5 to 3P) for threading near the bottom of blind holes
• TiCN coating improves surface hardness and reduces friction for longer tool life
• Cobalt high speed steel construction handles hardened and high-alloy workpiece materials
• Right-hand thread direction; tapping depth capacity of 49.10 mm (1.9331 inches)
• No coolant-through design; compatible with standard flood coolant or cutting fluid application

Compatibility

Part of the OSG Series 16350 EXOPRO XPF line, designed for metric coarse thread forming in aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloy, and titanium workpieces in blind hole and through-hole applications.

Installation Notes

Thread forming taps should be installed by qualified machinists familiar with tap geometry and material-specific speeds and feeds. Before tapping, ensure the spindle and workholding are powered down or stopped and the correct pilot hole diameter for forming taps is used, as forming taps require a different hole size than cutting taps for the same thread. Apply an appropriate cutting or tapping fluid for the workpiece material. Follow shop safety protocols and applicable OSHA machining standards when handling and installing cutting tools.