Precision Twist Drill 6000146 Spotting Drill 3/4 Inch Hss Tin

Product Description

The PRECISION TWIST DRILL 6000146 is a single-ended spotting drill designed to establish precise center points and guide subsequent drilling operations. Built from high speed steel (HSS) with a titanium nitride (TiN) coating, this tool delivers improved surface hardness and wear resistance compared to uncoated HSS. The 90-degree drill point angle is suited for general-purpose spotting applications across a wide range of workpiece materials. At 5 inches overall length with a 3/4-inch straight-cylindrical shank, the tool mounts securely in standard drill chucks and collet holders. Machinists, tool-and-die workers, and production drilling operators rely on spotting drills like this one to reduce hole-location error before full-depth drilling.

This spotting drill is used in machine shop environments including CNC machining centers, knee mills, and drill presses where accurate hole positioning is required before running twist drills, reamers, or boring tools. The 90-degree point angle is compatible with standard countersink and drill-point geometry, making it a common first operation in multi-step hole-making cycles in both production and job-shop settings. The spiral flute geometry clears chips efficiently during the shallow spotting cut.

Key Features

• 90-degree drill point angle for general-purpose spotting and center location
• High speed steel construction for toughness across a broad range of materials
• TiN coating increases surface hardness and extends tool life in production runs
• Spiral flute design with 2 flutes promotes chip evacuation during spotting cuts
• Straight-cylindrical shank fits standard drill chucks and collet systems
• Right-hand cut, single-ended — Series SPSG-90

Compatibility

Designed as a general-purpose spotting drill for use in CNC machining centers, manual mills, and drill presses that accept a 3/4-inch straight-cylindrical shank tool. Part of the PRECISION TWIST DRILL Series SPSG-90.

Installation Notes

Installation and operation should be performed by qualified machinists or tooling professionals. Ensure the machine spindle is fully stopped and the tool holder is clean and undamaged before mounting the shank. Secure the shank to the full recommended grip depth in the chuck or collet before operating. Follow machine manufacturer guidelines and applicable shop safety procedures for speeds and feeds when running HSS tooling with TiN coating.