Walter-titex 7378121 Screw Machine Drill Bit 0.2087in Carbide

Product Description

The WALTER-TITEX 7378121 is a solid carbide screw machine length drill bit designed for high-precision drilling in demanding industrial and trade applications. It carries a 0.2087-inch diameter, a 140-degree point angle, and a coated finish that extends tool life across repeated use cycles. The overall length measures 2.598 inches with a flute length of 1.102 inches, making it compact enough for stub-length drilling tasks where clearance is limited. Two right-hand flutes provide efficient chip evacuation, and the coolant-through design supports high-feed drilling strategies in production environments. Machinists, tool-and-die technicians, and CNC operators are the primary users of this bit.

This drill bit is suited for use in CNC machining centers, drill presses, and automated production equipment where a screw machine length profile is required. Primary workpiece materials include cast iron, hard materials, non-ferrous metals, and steel, covering a broad range of shop-floor applications. The straight-cylindrical shank with a 0.236-inch diameter fits standard collets and chucks in that size range. The Series DC160-03-A1 designation places it within a universal advance performance class, and it conforms to DIN and ISO standards for dimensional accuracy and tool geometry.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• 140-degree point angle reduces thrust force and improves self-centering on entry
• Coolant-through design supports high-speed, high-feed drilling with internal chip flushing
• Screw machine length (stub) profile improves rigidity and reduces deflection in short-reach setups
• Right-hand cut with 2 flutes for efficient chip removal and clean hole finish
• Conforms to DIN and ISO standards; material grade WJ30ET for broad material compatibility

Compatibility

Designed for use with cast iron, hard materials, non-ferrous metals, and steel workpieces. Compatible with toolholding systems accepting a 0.236-inch straight-cylindrical shank. Fits within the 0.2000-inch to 0.2500-inch drill bit size range per Series DC160-03-A1 specifications.

Installation Notes

Installation and tool changes should be performed by a qualified machinist or CNC technician with the machine powered down and locked out per applicable safety procedures. Ensure the collet or chuck is clean and within spec for the 0.236-inch shank diameter before seating the bit. Verify coolant-through lines are clear and delivering adequate flow before running at production feeds and speeds. Inspect the cutting edges before each use and replace the bit at first signs of chipping or wear to prevent workpiece damage.