Bosch PROFACTOR 18V Connected Barrel-Grip Jig Saw (GST 18V-155 SC)
The most advanced cordless barrel-grip jigsaw on the planet. High-demand PROFACTOR motor, digital display, Drop Control safety shutoff, and double-roller blade guidance that eliminates blade deflection entirely.
- Max Wood Cut: 6-1/8 in. (155 mm)
- Max Steel Cut: 3/8 in. (10 mm)
- Stroke Speed: 800 – 3,800 SPM
- Bare Tool Weight: 5.1 lbs. (bare tool)
Browse compatible T-shank blades for wood, metal and plastics →
View official Bosch battery packs and dual-voltage rapid chargers →
Key Performance Highlights
- 6-1/8 in. (155 mm)Max Wood Cut
- 800 – 3,800 SPMStroke Speed
- 1 in. (26 mm)Stroke Length
- Barrel GripGrip Style
Engineering Strengths & Performance Advantages
Advantage 1
BITURBO Brushless motor matches the power of a 1,000-Watt corded saw, driving up to 3,800 SPM.
Advantage 2
Patented double roller blade guide locks the blade rigid, preventing bevel deflection even in 6-inch solid timbers.
Advantage 3
Interactive digital HMI display lets you customize speed levels and lighting settings via smartphone app.
Advantage 4
Drop Control automatically shuts the motor off immediately if the saw is dropped from a workbench.
Workshop Checklist & Buying Advice
- Bare Tool designation: On merchant listings like Amazon, "Bare Tool" indicates the package includes only the jigsaw itself. Battery packs and charger are sold separately or bundled in kit versions.
- Universal T-Shank: This tool utilizes standard universal T-shank blades. Older U-shank or universal-hole blades are not recommended.
- Dust collection: For indoor carpentry and cabinetry remodeling, connect an external 1-1/4" vacuum hose adapter to minimize airborne dust.
Everything You Need to Start Cutting with this Jigsaw
To maximize precision and runtime right out of the box, our woodworking editors recommend pairing this saw with contractor-grade blades and matching power accessories.
Bosch PROFACTOR 18V Connected Barrel-Grip Jig Saw (GST 18V-155 SC)
The most advanced cordless barrel-grip jigsaw on the planet. High-demand PROFACTOR motor, digital display, Drop Control safety shutoff, and double-roller blade guidance that eliminates blade deflection entirely.
Bosch Robust Line Wood and Metal (10-Piece Set)
Heavy-duty shockproof case containing premium Clean for Wood, Speed for Wood, and Basic for Metal blades.
Bosch CORE18V 4.0 Ah Compact Battery (GBA18V40)
Genuine Bosch 18V System (AMPShare) lithium-ion battery pack with 4.0 Ah capacity and cell thermal protection.
Greenworks GD24JSK2
Greenworks
- Power: 24V Lithium-Ion
- Max Wood: 3-1/8 in. (80 mm)
- Speed: Hasta 3.000 SPM
WORX WX542.9
WORX
- Power: 20 V MaxV Lithium-Ion
- Max Wood: 4-3/4 in. (120 mm)
- Speed: 0–3.500 SPM
Bosch PST 650
Bosch
- Power: 120V / 4.5 Amp Corded
- Max Wood: 2-9/16 in. (65 mm)
- Speed: 3.100 SPM
Bosch PROFACTOR 18V Connected Barrel-Grip Jig Saw (GST 18V-155 SC): Workshop Positioning & Cutting Capabilities
The Bosch PROFACTOR 18V Connected Barrel-Grip Jig Saw (GST 18V-155 SC) pairs Bosch’s heavy-duty manufacturing standards with an intuitive Barrel Grip chassis, creating an authoritative cutting instrument for both solid timber and non-ferrous metals. The refined 18V PROFACTOR Brushless power plant of the Bosch PROFACTOR GST 18V-155 SC ensures steady stroke momentum, preventing stall-outs during dense stock separation.
The most advanced cordless barrel-grip jigsaw on the planet. High-demand PROFACTOR motor, digital display, Drop Control safety shutoff, and double-roller blade guidance that eliminates blade deflection entirely.
The Bosch PROFACTOR GST 18V-155 SC provides substantial cutting authority with factory ratings of 6-1/8 in. (155 mm) in structural timber, 3/8 in. (10 mm) in metal sheeting, and 1 in. (25 mm) in light alloys, making it well-suited for framing cutouts, plumbing penetrations, and fine cabinetry scribing.
Verified Factory Specifications & Physical Dimensions
Below are the verified manufacturer specifications and physical parameters for the Bosch PROFACTOR 18V Connected Barrel-Grip Jig Saw (GST 18V-155 SC):
- Power Platform: 18V PROFACTOR Brushless
- Grip Configuration: Barrel Grip
- No-Load Stroke Rate: 800 – 3,800 SPM
- Stroke Length: 1 in. (26 mm)
- Cutting Capacity in Wood: 6-1/8 in. (155 mm)
- Cutting Capacity in Steel: 3/8 in. (10 mm)
- Cutting Capacity in Aluminum: 1 in. (25 mm)
- Bare Tool Weight: 5.1 lbs. (bare tool)
- Bevel Range: Positive detents at 0°, 15°, 30°, and 45°
- Blade Shank Standard: Universal keyless T-shank clamp
Motor Architecture & Vibration Damping Dynamics
Bosch engineered the Bosch PROFACTOR GST 18V-155 SC with a high-torque brushless drive regulated by Constant Response circuitry. This electronic governor maintains consistent stroke cadence even as cutting resistance spikes through hardwood knots. Harmonic vibration dampeners built into the plunger assembly keep hand-arm vibration well below commercial fatigue thresholds.
By eliminating the high overhanging handle, the barrel-style body of the Bosch PROFACTOR GST 18V-155 SC delivers exceptional feedback through the fingertips. Rubberized touchpoints along the cylindrical housing absorb vibration, ensuring precise tracking when trimming scribe lines along irregular masonry or drywall.
Shoe Base Engineering, Bevel Accuracy & Cut-Line Clarity
The footplate on the Bosch PROFACTOR GST 18V-155 SC is cast from rigid alloy with steel inserts to withstand heavy jobsite drops. Tool-free bevel adjustments lock securely at standard 0°, 15°, 30°, and 45° angles. A built-in dust blower keeps the pencil path clear of debris, while the included non-marring sub-base shoe protects pre-finished cabinetry from unsightly scratches.
Keyless Blade Clamp & Orbital Action Settings
Changing blades on the Bosch PROFACTOR GST 18V-155 SC requires zero tools thanks to a spring-loaded quick-change chuck. Pulling the external release lever disengages the locking tangs for instant, safe blade replacement with standard T-shank accessories.
A dedicated 4-position orbital action switch on the Bosch PROFACTOR GST 18V-155 SC adjusts the aggressive forward thrust of the blade:
- Setting 0: Vertical reciprocation without orbital swing. Essential for sheet metals, copper tubing, PVC, and chip-free cuts in double-sided melamine veneers.
- Setting 1: Subtle orbital oscillation. Recommended for dense hardwoods like white oak, hard maple, and birch plywood to balance edge smoothness with cut progress.
- Setting 2: Medium pendulum swing. The workhorse setting for general softwood framing (2x4, 2x6) and construction lumber.
- Setting 3: Maximum aggressive orbital thrust. Delivers blistering feed speed for rough dimensioning, timber framing, and demolition work where speed outweighs edge cosmetics.
Frequently Asked Questions About the Bosch PROFACTOR GST 18V-155 SC
Can I use existing Bosch batteries with the Bosch PROFACTOR GST 18V-155 SC?
Yes. The Bosch PROFACTOR GST 18V-155 SC is fully cross-compatible with any standard pack from the Bosch 18V PROFACTOR Brushless lineup. Whether using compact 2.0 Ah slim packs or high-demand 5.0 Ah extended-runtime batteries, the tool locks on securely without adapters.
Does the Bosch PROFACTOR GST 18V-155 SC feature low-voltage battery protection?
Yes. Integrated microprocessor monitoring cuts motor power before cells discharge below critical voltage levels, preserving the overall cycle life and health of your 18V PROFACTOR Brushless lithium-ion packs.
Does the blade clamp accept U-shank blades?
No. Like modern professional jigsaws, the Bosch PROFACTOR GST 18V-155 SC is engineered specifically for universal T-shank blades. T-shank side tangs provide positive mechanical locking that prevents blade slippage under high orbital loads.