Walter-titex 5153721 Screw Machine Drill Bit 0.266 in

Product Description

The WALTER-TITEX 5153721 is a screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built from cobalt vanadium high speed steel with a bright, uncoated finish, this bit delivers consistent cutting performance across a range of ferrous and non-ferrous materials. It measures 0.266 inches (17/64 inches, Letter H) in diameter with a 130-degree split point and a parabolic flute geometry. The straight-cylindrical shank fits standard drill chucks, and the web-thinned, tapered web configuration reduces thrust requirements at entry. Licensed machinists, tool-and-die technicians, and fabrication professionals are the primary installers.

This bit is suited for screw machine, production drilling, and general fabrication environments where compact drill length and reduced deflection matter. Its universal tool performance rating covers cast iron, hard materials, non-ferrous metals, stainless steel, and steel. The 3xD flute-to-diameter ratio and parabolic flute design support efficient chip evacuation in short-hole drilling. Maximum drilling depth is 0.900 inches (22.00 mm). Applications span CNC machining centers, manual drill presses, and hand-held drilling in metal fabrication or maintenance settings where a rigid, short-body bit outperforms standard jobber-length geometry.

Key Features

• Cobalt vanadium high speed steel construction for heat resistance and edge retention in hard and abrasive materials
• 130-degree split point reduces walking and lowers thrust at drill entry
• Parabolic flute profile promotes efficient chip evacuation in short-depth bores
• Web-thinned, tapered web configuration minimizes cutting resistance
• Screw machine (stub) length body reduces deflection and improves rigidity in tight-clearance setups
• Meets DIN, ISO, and BS specification designations for dimensional and performance conformance

Compatibility

Designed as an OEM-style screw machine length drill bit in the WALTER-TITEX Series A1148, suitable for use in standard straight-shank drill chucks on CNC machining centers, drill presses, and screw machines where a 0.266-inch diameter bore is required in cast iron, stainless steel, steel, hard materials, or non-ferrous metals.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with metal-cutting operations. Secure the shank fully in the chuck and verify runout before drilling. Power down all equipment and lock out energy sources before changing or inspecting the bit. Do not exceed the recommended maximum drilling depth of 0.900 inches without retracting to clear chips, particularly in stainless steel or cast iron.