IGM 137-DBB-LDA Long Drill Adapter User Guide
Quick guide for the IGM 137-DBB-LDA long drill adapter. Learn how to install and use this accessory for drilling precise, deep holes in doors for cabling.
Table of contents
Quick guide
The IGM 137-DBB-LDA is a specialized adapter designed for drilling long, precise holes through the width of doors, primarily for installing cabling for electric locks. This adapter must be used in conjunction with an IGM door lock drilling jig. It ensures the drill bit is guided accurately into the cut.
Safety instructions
- Inspection: Before starting, check the condition of the adapter and the cutting tool. Do not use if damaged or if the drill bit is dull.
- Work Environment: Work on a clean, well-lit surface with sufficient space.
- Personal Protection: Wear appropriate work clothing, eye protection, hearing protection, and respiratory protection. Tie back long hair and remove loose jewelry.
- Clamping: Ensure the jig is firmly fixed in place. Use clamps if necessary. Never hold the jig by hand while drilling.
- Handling: Keep the tool out of reach of children and unqualified persons. Do not expose to moisture or rain.
Installation and operation

- Remove: Detach the existing jig from the door.
- Disassemble: Take apart the assembly.
- Insert Bushing: Insert the bushing into the rear part of the jig.
- Washer: Place the star washer on the thread under the cap nut.
- Tighten: Securely tighten the assembly.
- Mount: Insert the drill bit and mount the jig back onto the door.
Maintenance and accessories
Use only accessories recommended by IGM for this product. Using unapproved accessories may cause damage to the tool and result in serious injury. Keep the tool clean and store it in a dry environment.
Manufacturer information
IGM Tools & Machinery
Practical help
Common problems
Ensure the adapter is properly tightened and the jig is securely clamped to the door. Verify the drill bit is sharp.
Verify that you are using a compatible IGM door lock drilling jig. The adapter is designed specifically for this system.
Before use
- Check that the drill bit is sharp and free of damage.
- Ensure the work area is clean and well-lit.
- Wear eye, ear, and respiratory protection, and work gloves.
- Ensure the jig is securely clamped to the door; do not hold by hand.
- Verify all parts of the adapter are present and tightened.
Specs in practice
- Compatibility
- Requires an IGM door lock drilling jig.
Images and diagrams
- The installation process involves disassembling the jig, inserting the adapter bushing into the rear, placing the star washer under the nut, and tightening before re-mounting the jig to the door.
Model compatibility
- Designed specifically for use with IGM door lock drilling jigs.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.