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Short, Piloted Barrel Liner Drill - Barrel Liner Drill, Piloted, .22 Rimfire, .315'''' (8mm)
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$100.42
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SKU: 361504008
Overview
Designed for gunsmithing work on .22 rimfire barrels, this piloted drill is intended for use when you want a standard-length, deep-hole tool and plan to add your own extension. The pilot helps it follow the original bore, while the drill’s geometry is described as helping reduce jamming and maintain accurate hole dimensions. It is a practical option for shop work where controlled alignment matters and where the user is equipped to silver solder or braze an extension. The trade-off is straightforward: it is a specialized tool for experienced users, not a general-purpose drill.
Why Hunters Choose the Brownells
Piloted Design
Follows the original bore for
Standard Length
Format lets you add your
Deep Hole
Flute geometry helps reduce jamming
Reinforced Web
Supports accurate hole dimensions
Nitrided Lands
Are included for extended tool
Key Features
- Piloted design follows the original bore for guided drilling.
- Standard-length deep hole drill intended for adding your own extension.
- Deep hole flute geometry and special helix angle help prevent jamming.
- Reinforced web supports accurate hole dimensions.
- Nitrided lands are specified for long life.
- High speed steel construction.
Best Used For
- Gunsmiths who can silver solder or braze a custom extension onto a liner drill
- Users needing a piloted drill to follow the original bore during barrel liner work
- Shop setups focused on deep-hole drilling with reduced jamming risk
- Those replacing or fitting .22 rimfire barrel liners using standard-length tooling
Specifications
| Caliber | .22 Rimfire |
|---|---|
| Deep Hole Flute Geometry | Present |
| Extension Requirement | User-supplied extension required if silver soldering or brazing onto a liner drill |
| Helix Angle | Special helix angle to prevent jamming |
| Liner Drill Type | Piloted |
| Material | High speed steel |
| Nitrided Lands | Present |
| Overall Length | 9.5 in |
| Pilot Diameter | .215" |
| Pilot Diameter Overall Length Alternative Caliber 25 20 | .248" / 11" |
| Pilot Diameter Overall Length Alternative Caliber 32 20 | .302" / 11.6" |
| Reinforced Web | Present |
Pros
- Piloted design follows the original bore for guided drilling.
- Standard length format lets you add your own extension.
- Deep hole flute geometry helps reduce jamming during use.
- Reinforced web supports accurate hole dimensions.
- Nitrided lands are included for extended tool life.
Considerations & Trade-offs
- This is a short, standard-length drill, so it requires you to add your own extension before use.
- The product is piloted and sized for .22 rimfire applications, so it is not a general-purpose drill for other bore sizes.
- The description indicates it is intended for users who can silver solder or braze an extension, which adds a fabrication step before the tool is ready.
- The listed specifications are limited to the drill itself; no extension is included.
Suggested Comparisons
- Gun barrel maintenance tools
- Barrel liner installation tools
- Bore drilling tools
- Gunsmithing hand tools
Suggested Accessories
- Brazing supplies
- Silver solder
- Drill press accessories
- Cutting fluid
Frequently Asked Questions
What is this drill intended for?
It is a piloted barrel liner drill for .22 rimfire applications, sold as a short, standard-length deep hole drill that can be extended by the user.
Does it come ready to use at full length?
No. The description says you can save money by adding your own extension, so this is a short drill intended for users who can silver solder or braze on their own extension.
What features are listed for the drill design?
The listed features are deep hole flute geometry, a special helix angle to help prevent jamming, a reinforced web for accurate hole dimensions, and nitrided lands for long life.
What material is the drill made from?
The specifications list high speed steel.
What pilot size is specified for this .22 rimfire version?
The specs list a pilot diameter of .215 inches and an overall length of 9.5 inches for the .22 version.