Boneham AM00000987 Slip-fixed Drill Bushing Steel

Product Description

The BONEHAM AM00000987 is a slip-fixed drill bushing designed to guide cutting tools with repeatable precision in jig and fixture applications. It carries industry codes SF and SFM and features a 5.9 mm inside diameter with a tolerance of +0.004 to +0.012 mm, a 10 mm body outside diameter, and a 25 mm length under head. Manufactured from steel hardened to 60 to 65 HRC, this bushing delivers the wear resistance and dimensional stability required in production drilling operations. It is counterbored and compatible with the LSM-2 lock screw for positive retention in the drill jig liner.

Slip-fixed bushings of this type are used in toolroom, job shop, and production machining environments where a removable bushing must seat securely in a pressed liner while allowing tool changeover between operations. The AM00000987 is suited for applications involving close-tolerance hole location, such as drilling, reaming, or counterboring in metal workpieces. Machinists and toolmakers install this bushing into a mating liner bushing already fixed in the jig plate, securing it with an LSM-2 lock screw to prevent rotation or lift-out during the cut.

Key Features

• 5.9 mm inside diameter with a tight tolerance of +0.004 to +0.012 mm for accurate tool guidance
• Steel construction hardened to 60 to 65 HRC for long service life in repetitive drilling operations
• 10 mm body outside diameter and 25 mm length under head for positive liner engagement
• Counterbored head with 18 mm head outside diameter and 8 mm head height
• Compatible with LSM-2 lock screw for secure retention in liner bushing
• Renewable bushing design allows replacement without disturbing the pressed liner

Compatibility

Designed for use with LSM-2 lock screws and compatible with SF and SFM industry-standard liner bushings per ANSI specifications. Confirm liner bushing bore size and lock screw placement before installation.

Installation Notes

Installation is performed by toolmakers or machinists during jig setup or bushing replacement. Ensure the mating liner bushing is fully seated and secure in the jig plate before inserting the slip-fixed bushing. Engage the LSM-2 lock screw fully to prevent rotation or axial movement during cutting. Inspect the bushing bore and seating surfaces for burrs or contamination prior to assembly.