Precision Twist Drill 6000038 Reduced Shank Drill Bit

Product Description

The PRECISION TWIST DRILL 6000038 is a reduced shank drill bit designed for drilling through ferrous metals and a wide range of secondary materials in professional machining and fabrication environments. The bit features a 61/64 inch (0.9531 inch) cutting diameter with a 1/2 inch Weldon flat shank, allowing it to seat securely in standard end-mill holders and reduce slippage under load. The 118-degree standard point angle suits general-purpose drilling in production and maintenance settings. Made from high-speed steel with a bright, uncoated finish, this bit is part of the R57 series and is built for right-hand cutting with a regular spiral flute geometry.

This drill bit is suited for shops, maintenance departments, and fabrication operations that require a reduced shank configuration to use larger-diameter bits in 1/2 inch capacity chucks or holders. The 3-flute Weldon flat shank design prevents rotation in the holder during heavy-feed applications. Primary workpiece material is ferrous metal, with secondary compatibility covering aluminum, copper, magnesium, nickel, titanium, cermet, and synthetic materials. It conforms to ANSI standards and carries a general-purpose performance rating, making it a practical choice for a broad range of drilling tasks without specialized coatings.

Key Features

• 61/64 inch (0.9531 inch) cutting diameter with 1/2 inch reduced shank for use in standard holders
• Weldon flat shank with 3 flats for positive drive and slip resistance under load
• 118-degree standard point angle for general-purpose entry and chip formation
• High-speed steel construction handles ferrous metal and a broad range of secondary materials
• Bright, uncoated finish; no coolant required for standard applications
• Regular spiral flute geometry with 3 inch flute length and 6 inch overall length

Compatibility

Designed as a general-purpose reduced shank drill bit compatible with 1/2 inch capacity chucks and Weldon-style end-mill holders. Suitable for ferrous metal as the primary workpiece material, with rated secondary compatibility for aluminum, cermet, copper, magnesium, nickel, synthetic materials, and titanium.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with proper bit-to-holder seating procedures. Ensure the Weldon flat is fully engaged with the set screw in the holder before operation to prevent bit migration. Always follow machine guarding and PPE requirements per applicable shop safety standards. Inspect the cutting edges for damage before each use and replace the bit if the point is chipped or the flutes are worn.