Model # FNS138-23

Internet #203866756

Bosch 1-3/8 in. x 23-Gauge Pinner Nailer

Discontinued Bosch

1-3/8 in. x 23-Gauge Pinner Nailer

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Product Overview

Bosch pneumatic fastening tools are engineered to direct 100% of their energy to the fastener by eliminating wasted power and space. Full force technology means the user has ample power to consistently sink nails in all types of engineered lumber, as well as standard wood boards and beams. The Bosch FNS138-23 23-Gauge Pinner Nailer, boasts optimized firing technology that counter sinks fasteners with 10% more power, while its slim body provides better line of sight and maneuverability. The in line self cleaning air filter prevents debris from getting into the tool extending service life. It also has a rubber over mold on housing prevents damage to work piece.

  • High power: best in class sinking long nails into hardwood (use any brand of fastener)
  • Zero-nail dry fire lock-out: prevents damage to work piece and internal components
  • Auto nail length adjust: magazine automatically adjusts to nail lengths 1/2 in. to 1-3/8 in.
  • In-line self-cleaning air filter: keeps debris away from valve and O-rings, improving life of tool
  • Slim lightweight body for better line of sight and maneuverability
  • Includes: FNS138-23 23-Gauge pinner, safety glasses, (2) no mar tips, 1/4 in. air fitting and carrying case
  • Need help? CLICK HERE to view our Nail Gun Buying Guide

Info & Guides

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Maximum fastener size (in.)
Minimum fastener size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Air Tool Type
Air Nailer
Compressor/Air Tool Features
No Additional Features
Cordless/ Corded
Energy Type
Fasteners included
No additional components or accessories are included
Loading type
Maximum Fastener Size
1-3/8 in
Minimum Fastener Size
1/2 in
Minimum Recommended Air Delivery SCFM @ 90PSI
Minimum Recommended Operating Pressure (psi)
Nail Gauge
Nailgun Angle
Tools Product Type
Power Tool

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Customer Questions & Answers

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Customer Reviews

1-3/8 in. x 23-Gauge Pinner Nailer is rated 4.3 out of 5 by 7.
Rated 5 out of 5 by from Sweet Tool This nailer works excellent.  Nice size and comfortable.  A must for cabinetry, moulding, and trim.  Love the accuracy and smooth operation.  Very easy to load different size nails.
Date published: 2013-12-19
Rated 5 out of 5 by from Easy to use and just works great Purchased for a crown molding project I was working on and some finishing work and it does the job with ease and was a pleasure to work with
Date published: 2013-09-09
Rated 4 out of 5 by from Newest model NO mar Newest model of dual trigger NO MAR pin nailers.. Works like it's supposed to do. Leaves the tiniest pin nail hole and if working with bare wood just wet the area and the swell will fill the hole leaving a perfect finish. No more bugger marks and a very professional look to the work. Be aware it has dual triggers and will fire when trigger activated even if not near anything at all... YES it is not wise to shoot pin nails across the room. This tool is meant for a skilled user in that respect.
Date published: 2015-01-14
Rated 5 out of 5 by from Good buy in my eyes. This is built as well as a similar gun that costs about 100 dollars more. Plenty of power to drive pins into oak,maple,and other hardwoods.
Date published: 2016-07-19
Rated 5 out of 5 by from Great Gun Best 23 Gauge for the price. I Like it better than the old Omer
Date published: 2014-04-01
Rated 1 out of 5 by from went through 4 of these- well actually i went through 3 of em and decided when i returned the 3rd one and they replaced it- i have decided to sell it NIB. i thought the first one was a lemon, when the second one went - i thought well maybe the pressure is excessive so i recalibrated my compressor to 75psi under the 80 max noted in the materials- when the 3rd one went- i realized it must be a design issue which bummed me out because for some reason i really wanted this guy to be a great long term tool for me. FYI the entire time this was going on, my Porter Cable which was a less expensive unit, never once had an issue-
Date published: 2014-03-25
Rated 5 out of 5 by from Sweet little pinner This pinner does what it supposed to do it. Very comfortable in the hand. Very well constructed with almost all parts being metal versus plastic. A joy to use.
Date published: 2014-06-07
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