BOSTITCH BT1855 18-Gauge Pneumatic Brad Nailer, BT13XX Series, 5/8″–2-1/8″ Fastener Range, Adjustable Depth

Condition: Used. Shows visible signs of jobsite use, including scratches, scuffs, dirt, finish wear, and light surface oxidation on some metal components and the magazine. The pneumatic quick-connect fitting is installed. The magazine, trigger, adjustment controls, and contact safety tip appear present.

Description

The BOSTITCH BT1855 is a professional pneumatic finish brad nailer designed for 18-gauge brad nails in the BT13XX Series. According to the factory label on the magazine, it accepts fasteners from 5/8″ to 2-1/8″ (15–55 mm) long.

This tool is intended for accurate finish fastening where a small nail head and clean appearance are important. It is well suited for trim, molding, cabinetry, furniture assembly, panel work, and general finish carpentry.

The BT1855 uses compressed air and features a straight magazine, adjustable drive depth, selectable trigger mode, and a contact safety mechanism at the nose.

Specifications

• Manufacturer: BOSTITCH
• Model: BT1855
• Tool Type: Pneumatic brad nailer / finish nailer
• Fastener Type: BT13XX Series
• Fastener Gauge: 18 GA
• Fastener Length Range: 5/8″–2-1/8″
• Metric Fastener Range: 15–55 mm
• Fastener Style: Straight brad nails
• Power Source: Pneumatic
• Magazine Type: Straight magazine
• Fastener Feed: Spring-loaded magazine
• Depth Adjustment: Yes
• Trigger Mode Selection: Present
• Contact Safety Nose: Yes
• Air Fitting: Installed
• Maximum Pressure Marked on Tool: Do not exceed 120 PSI
• Recommended Air Source: Regulated air compressor with suitable hose and fittings

Features

• Uses widely available 18-gauge brad nails
• Accepts a broad range of fastener lengths up to 2-1/8″
• Suitable for detailed finish work
• Narrow nose for accurate placement
• Adjustable drive depth
• Selectable trigger mode
• Ergonomic rubberized grip
• Straight vertical magazine
• Fastener-length scale on magazine
• Protective no-mar style nose tip
• Compact pneumatic drive system
• Quick-connect air fitting
• Designed for professional trim and woodworking applications

Compatible Fasteners

The factory label identifies:

FASTENER TYPE: BT13XX Series

FASTENER RANGE: 5/8″–2-1/8″ / 15–55 mm

FASTENER GAUGE: 18 GA

Typical compatible brad lengths include:

• 5/8″
• 3/4″
• 1″
• 1-1/4″
• 1-1/2″
• 1-3/4″
• 2″
• up to 2-1/8″

Third-party brads should be checked for proper dimensional compatibility before use.

Applications

The BOSTITCH BT1855 is suitable for:

• Baseboard installation
• Decorative molding
• Door and window trim
• Cabinet assembly
• Furniture construction
• Light woodworking
• Panel installation
• Decorative woodwork
• Drawer construction
• Furniture repair
• Interior finish carpentry
• Small wood components
• Shop fabrication
• General trim work

This is a finish brad nailer, not a framing nailer, so it is not intended for structural framing applications.

Pneumatic Requirements

The tool should be operated from a regulated compressed-air source.

The warning label on the tool indicates:

• Do not use oxygen or bottled gases
• Do not exceed 120 PSI
• Disconnect the air supply before clearing jams, servicing, or when the tool is not in use

A properly regulated compressor and suitable pneumatic hose should be used for consistent performance.

Visible Condition

Based on the supplied photos:

• Scratches are visible on the housing
• Black and orange finish shows wear
• Dust and jobsite residue are present
• Magazine coating shows wear
• Light oxidation is visible on some screws and metal hardware
• Pneumatic fitting is installed
• Magazine appears complete
• Fastener pusher is present
• Trigger mechanism is present
• Trigger-mode selector is present
• Contact safety nose appears present
• Rubber grip shows normal wear
• Factory marking BT1855 / BT13XX Series / 18 GA remains readable

No obvious major cracks or missing primary assemblies are visible in the provided images.

Cross-Referenced Models

Related or comparable BOSTITCH models include:

• BOSTITCH BT1855 — 18 GA, BT13XX, 5/8″–2-1/8″
• BOSTITCH BT1855K — kit version of the BT1855
• BOSTITCH BTFP12233 — 18 GA Smart Point brad nailer
• BOSTITCH SB-2IN1 — combination 18 GA brad nailer / narrow crown stapler
• BOSTITCH BT200 — related 18 GA finish brad nailer

Internal-part interchangeability should be confirmed separately before assuming direct compatibility.

Comparable Products

Functionally similar tools include:

• DeWalt 18 GA pneumatic brad nailers
• Makita AF506 18 GA brad nailer
• Metabo HPT NT50AE2 18 GA brad nailer
• Porter-Cable BN200 series
• Senco FinishPro 18 GA series
• RIDGID 18 GA pneumatic brad nailer
• Milwaukee 18 GA finish nailer

When selecting a substitute, compare fastener type, maximum nail length, operating pressure, nose geometry, magazine capacity, and depth-adjustment system.

Related

BOSTITCH BT1855, BOSTITCH BT1855K, BT13XX Series, BOSTITCH brad nailer, 18 gauge nail gun, 18 GA brad nailer, pneumatic finish nailer, air nail gun, finish brad nailer, 5/8 to 2-1/8 inch nailer, trim nailer, cabinet nailer, molding nailer, woodworking nailer, pneumatic brad gun, finish nail gun, air brad nailer, trim fastening tool.

Common Requests:

• BOSTITCH BT1855 18 gauge pneumatic brad nailer 5/8 to 2-1/8 inch
• BOSTITCH BT1855 compatible BT13XX series brad nails
• used BOSTITCH BT1855 pneumatic finish nail gun
• replacement for BOSTITCH BT1855 18 GA brad nailer
• BOSTITCH BT1855 air pressure and compatible fastener size

P129; B001