Walter-titex 5057128 Screw Machine Drill Bit 0.4331 in

Product Description

The WALTER-TITEX 5057128 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from Cobalt Vanadium High Speed Steel with a bright/uncoated finish, it delivers durability and heat resistance in tough applications. The 130-degree split point provides self-centering entry and reduces walking on hard surfaces. A parabolic flute geometry improves chip evacuation, keeping the cutting zone clear during deep-hole drilling. At 0.4331 inches in diameter with an overall length of 3.75 inches and a flute length of 1.84 inches, this bit suits production drilling where stub-length rigidity is required. Licensed HVAC, plumbing, and electrical trades as well as general fabrication shops rely on this bit for precision hole-making in ferrous and non-ferrous materials.

The 5057128 is suited for drilling cast iron, stainless steel, carbon steel, hard materials, and non-ferrous metals. Its screw machine length reduces overhang and deflection compared to jobber-length bits, making it a practical choice for drill press, CNC machining center, and turret lathe applications. The straight cylindrical shank accepts standard drill chucks and collet holders without modification. With a maximum drilling depth of 1.10 inches and a 3xD flute-to-diameter ratio, this bit performs well in through-hole and shallow blind-hole production cycles.

Key Features

• Cobalt Vanadium HSS construction provides elevated heat and wear resistance for hard and stainless steel drilling
• 130-degree split point reduces thrust force and self-centers on entry without a pilot hole
• Parabolic flute geometry promotes rapid chip evacuation and reduces clogging in deep cuts
• Screw machine length design minimizes deflection and improves hole accuracy in production environments
• Web-thinned tapered web reduces cutting resistance and extends tool life
• Meets DIN, ISO, and BS specification designations for dimensional and performance standards

Compatibility

Designed as an OEM-style replacement or direct-fit option for applications requiring a 0.4331-inch screw machine length drill bit in WALTER-TITEX Series A1148. Compatible with standard straight-shank drill chucks and collet systems used in drill presses, CNC machining centers, and turret lathes.

Installation Notes

This bit should be installed by a qualified machinist or tradesperson familiar with drilling operations and applicable shop safety standards. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit from the chuck or collet. Verify chuck concentricity and secure clamping before beginning a cut to maintain dimensional tolerance within the stated -0.00106 to 0.00000 inch diameter tolerance range. Coolant-through is not supported on this bit; use external flood or mist coolant when drilling stainless steel or hard materials to manage heat buildup.