Keo 955-000-023 Spotting Drill 1/4 in Hss Left Hand

Product Description

The KEO 955-000-023 is a high-speed steel spotting drill designed to create precise starter indentations that guide twist drills and prevent walking on flat or curved workpiece surfaces. With a 0.250-inch cutting diameter and a 118-degree point angle, it produces a clean, accurate cone seat that matches the included angle of most standard twist drills. The left-hand cutting direction makes it well suited for reverse-rotation spindle setups or for backing out broken fasteners in combination with left-hand extraction tools. At 1.5 inches overall length, this is a compact tool built for rigid, close-tolerance spotting work in general-purpose machining environments.

This spotting drill is used in metalworking shops, maintenance and repair operations, and production drilling applications where accurate hole location is critical. The single-ended, straight-cylindrical shank fits standard drill chucks and collet holders commonly found on drill presses, CNC machining centers, and manual mills. The bright uncoated finish suits dry or flood-coolant cutting on a range of ferrous and non-ferrous materials in general-purpose service.

Key Features

• 118-degree point angle matches standard twist drill geometry for consistent seat formation
• Left-hand cutting direction supports reverse-spindle and fastener-extraction applications
• High-speed steel construction provides toughness and edge retention in general-purpose use
• Bright uncoated finish compatible with dry cutting and flood coolant
• Spiral flute design with two flutes promotes chip clearance during spotting
• Straight-cylindrical shank fits standard drill chucks and collet systems

Compatibility

Designed as a general-purpose spotting drill for use in standard drill chucks and collet holders accepting a 0.250-inch straight-cylindrical shank on drill presses, manual mills, and CNC machining centers.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with rotating cutting tools. Ensure the spindle is fully stopped and the machine is powered down before loading or removing the tool from the chuck or collet. Confirm chuck or collet runout is within acceptable limits before use, as excessive runout will degrade spot accuracy. Always follow the machine manufacturer guidelines and applicable shop safety standards when operating drilling equipment.