Walter-titex 5057572 Screw Machine Drill Bit 0.1693 in

Product Description

The WALTER-TITEX 5057572 is a solid carbide screw machine length drill bit designed for precision drilling in hard and abrasive materials. Measuring 0.1693 inches (4.30 mm) in diameter, it features a 118-degree drill point angle and a right-hand spiral flute configuration. The bit is finished bright and uncoated, which is standard for carbide tooling used in glass and graphite applications where coatings can cause compatibility issues. Overall length is 2.2835 inches with a flute length of 0.9449 inches. It belongs to WALTER-TITEX Series A1163 and conforms to DIN 6539 specifications. Qualified machinists and tool room technicians are the primary installers of this type of precision cutting tool.

This drill bit is suited for machining glass and graphite workpieces in industrial and precision fabrication environments. The screw machine (stub) length geometry provides added rigidity compared to jobber-length bits, reducing deflection in short-hole drilling operations. A Form V+A point with web thinning helps reduce thrust and improve centering on hard, brittle substrates. The straight-cylindrical shank fits standard drill chucks and collet holders. Maximum drilling depth is 0.6299 inches, making it appropriate for through-holes and shallow blind bores in production or toolroom settings.

Key Features

• Solid carbide construction in material grade K30F for durability in abrasive materials
• 118-degree drill point angle with Form V+A tip geometry for accurate entry on hard substrates
• Web-thinned, tapered web configuration reduces cutting thrust
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Screw machine (stub) length for increased rigidity and reduced deflection
• Conforms to DIN 6539 and ISO standards with h7 diameter tolerance

Compatibility

Designed for drilling glass and graphite workpieces. Shank diameter is 4.30 mm with a straight-cylindrical profile compatible with standard drill chucks and collet systems accepting that shank size. Fits applications within the 0.1500 to 0.2000 inch (3.50 to 5.00 mm) drill bit size range per Series A1163.

Installation Notes

This tooling is installed and operated by machinists or precision fabrication technicians using compatible drill presses, CNC machining centers, or hand drilling equipment with appropriate collet or chuck systems. Ensure the machine spindle and workholding are secure before operation to prevent bit walking on hard or brittle surfaces. Carbide tooling is brittle and should not be subjected to side loads or impact. No coolant-through capability is present on this bit, so external coolant or dry cutting conditions appropriate to the workpiece material should be used.