Keo 955-000-027 Spotting Drill 5/16 in 90 Deg Hss

Product Description

The KEO 955-000-027 is a single-ended spotting drill designed to create accurate center locations and chamfered entry points before through-drilling or tapping operations. Built from high-speed steel with a bright, uncoated finish, it features a 90-degree point angle and a 5/16-inch cutting diameter. The straight cylindrical shank and compact 1-1/2-inch overall length make it easy to chuck in standard drill chucks, collet holders, or CNC toolholders. With two spiral flutes and a right-hand cutting direction, it provides clean chip evacuation during general-purpose spotting work in a range of workpiece materials.

This spotting drill is suited for use in machine shops, production environments, and maintenance repair operations where precise hole location is critical before drilling, countersinking, or tapping. It performs well in manual milling machines, drill presses, and CNC machining centers. Machinists and tooling technicians working with metals, plastics, and composites rely on spotting drills like this to prevent drill wander and improve hole position accuracy.

Key Features

• 90-degree point angle for accurate spotting and chamfer generation prior to drilling
• 5/16-inch cutting diameter with matching 5/16-inch straight cylindrical shank
• High-speed steel construction for general-purpose use across a wide range of materials
• Bright, uncoated finish suitable for use with cutting fluids or dry applications
• Two spiral flutes with right-hand cut for efficient chip clearance
• Compact 1-1/2-inch overall length fits standard short-reach toolholding setups

Compatibility

Designed as a general-purpose spotting drill compatible with standard straight-shank drill chucks, ER collet systems, and similar toolholding setups used in drill presses, manual mills, and CNC machining centers.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and locked out before inserting or changing tooling. Secure the shank firmly in a properly sized collet or chuck and verify runout before beginning operations. Use appropriate cutting fluid for the workpiece material and operating speed to extend tool life and maintain surface quality.