Milwaukee M12 FUEL Jig Saw (2545-20)
The ultimate compact secondary saw. Featherweight 3.3-pound barrel grip designed for one-handed overhead trimming, sink cutouts, and tight cabinet scribing.
- Max Wood Cut: 90 mm
- Max Steel Cut: 3 mm
- Stroke Speed: 800–3,000 SPM
- Bare Tool Weight: 1.5 kg
Browse compatible T-shank blades for wood, metal and plastics →
View official Milwaukee battery packs and dual-voltage rapid chargers →
Key Performance Highlights
- 90 mmMax Wood Cut
- 800–3,000 SPMStroke Speed
- 19 mmStroke Length
- Barrel GripGrip Style
Engineering Strengths & Performance Advantages
Advantage 1
Ultra-compact low-profile body fits into drawers, subfloor cavities, and tight cabinet boxes.
Advantage 2
POWERSTATE brushless motor delivers steady 3,000 SPM despite the tiny 12V footprint.
Advantage 3
Tool-free T-shank blade clamp and onboard LED work light.
Advantage 4
Variable speed dial with 5 positions plus auto-controlled trigger ramping.
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.
Workshop Performance Scorecard & Benchmark Ratings
Standardized evaluation measuring blade guide rigidity, vibration dampening, and sustained cutting cadence.
- Cutting Precision & Guide Rigidity9.3 / 10
Square 90° verticality retention and minimal lateral blade deflection in thick timber.
- Vibration Damping & Work Ergonomics9.0 / 10
Dynamic counterbalance control minimizing operator hand fatigue during continuous runs.
- Cutting Cadence & Motor Torque8.9 / 10
Aggressive feed rate through dense hardwoods without speed stalling.
- Cutline Visibility & Dust Clearance8.8 / 10
Integrated blower effectiveness and illumination along marked cut lines.
- Tool-Free Blade Clamp & Bevel Base8.8 / 10
Keyless hot blade ejection mechanism and rigid cast footplate bevel detents.
Orbital Pendulum Dial Guide: Matching Positions 0 to 3 to Your Cut
Orbital pendulum action drives the blade forward on the upstroke and retracts it on the downstroke. Dialing the right setting eliminates tear-out, blade breakage, and overheating.
Position 0: Straight Vertical Reciprocation (No Orbital)
Zero tear-out & dense structural materialsSheet steel, aluminum plate, PVC conduit, acrylic glass, double-sided melamine, and tight radius scrolling.
Position 1: Low Orbital Thrust
Dense hardwoods & 45° bevel cutsWhite oak, maple, butcher block countertops, and 45° miter bevels to prevent lateral blade wander.
Position 2: Medium Orbital Setting
Everyday softwood & plywood standardPine, fir, CDX plywood, OSB subflooring, and general woodworking balancing speed with edge quality.
Position 3: Maximum Orbital Action
High-speed demolition & rough framingStructural 2x4 framing lumber, pressure-treated posts, garden timber, and rough cuts where chip-out does not matter.
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.
Milwaukee M12 FUEL Jig Saw (2545-20)
The ultimate compact secondary saw. Featherweight 3.3-pound barrel grip designed for one-handed overhead trimming, sink cutouts, and tight cabinet scribing.
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.
Milwaukee M18 REDLITHIUM XC5.0 Battery Pack (48-11-1850)
Genuine Milwaukee M18 REDLITHIUM lithium-ion battery pack with 5.0 Ah capacity and cell thermal protection.
Greenworks GD24JSK2
Greenworks
- Power: 24V Lithium-Ion
- Max Wood: 80 mm
- Speed: Up to 3,000 SPM
WORX WX542.9
WORX
- Power: 18V Lithium-Ion
- Max Wood: 120 mm
- Speed: 0–3,500 SPM
Bosch EasySaw 18V-70
Bosch
- Power: 18V Lithium-Ion
- Max Wood: 70 mm
- Speed: 0–2,600 SPM
Milwaukee M12 FUEL Jig Saw (2545-20): Workshop Positioning & Cutting Capabilities
Bringing dependable jobsite stamina to trim carpenters, the Milwaukee M12 FUEL Jig Saw (2545-20) showcases Milwaukee’s mechanical engineering in a versatile Barrel Grip configuration. The responsive M12 FUEL 12V Lithium-Ion motor ensures that the Milwaukee 2545-20 M12 FUEL navigates tight turns and compound angles without losing stroke cadence.
The ultimate compact secondary saw. Featherweight 3.3-pound barrel grip designed for one-handed overhead trimming, sink cutouts, and tight cabinet scribing.
Whether cutting 70 mm in standard lumber framing, 3 mm in sheet metal roofing, or 6 mm in extruded trim, the Milwaukee 2545-20 M12 FUEL maintains perpendicular cut lines across diverse materials with appropriate blade selections.
Verified Factory Specifications & Physical Dimensions
Below are the verified manufacturer specifications and physical parameters for the Milwaukee M12 FUEL Jig Saw (2545-20):
- Power Platform: 12V M12 REDLITHIUM
- Grip Configuration: Barrel Grip
- No-Load Stroke Rate: 800–3,000 SPM
- Stroke Length: 19 mm
- Cutting Capacity in Wood: 90 mm
- Cutting Capacity in Steel: 3 mm
- Cutting Capacity in Aluminum: 15 mm
- Bare Tool Weight: 1.5 kg
- Bevel Range: Positive detents at 0°, 15°, 30°, and 45°
- Blade Shank Standard: Universal keyless T-shank clamp
Motor Architecture & Vibration Damping Dynamics
At the core of the Milwaukee 2545-20 M12 FUEL is a custom POWERSTATE brushless motor managed by REDLINK PLUS intelligence. This digital communication link between motor, switch, and battery pack monitors thermal thresholds in real time, preventing tool overload without sacrificing aggressive cutting speeds across 800 – 3,000 SPM. The internal counterweight reduces wrist fatigue on vertical cabinetry scribes.
The barrel-grip silhouette of the Milwaukee 2545-20 M12 FUEL is engineered specifically for finish carpenters who prefer guiding the tool from the waist or workpiece level. With the primary control point aligned directly over the plunger axis, tilting moments and blade deflection around tight curves are dramatically reduced.
Shoe Base Engineering, Bevel Accuracy & Cut-Line Clarity
The die-cast shoe of the Milwaukee 2545-20 M12 FUEL provides an ultra-flat gliding plane that resists warping under lateral guide fence pressure. Positive bevel stops at standard angles make beveling straightforward, while an onboard LED work light casts an unobstructed beam directly onto the cut line.
Keyless Blade Clamp & pendulum action Settings
Equipped with an automatic blade ejection lever, the Milwaukee 2545-20 M12 FUEL eliminates the need to touch burning metal after heavy cutting sessions. The heavy-duty jaw mechanism grips standard T-shank blades firmly, preventing vertical slippage under heavy feed force.
To balance rapid lumber severance against splinter-free face cuts, the Milwaukee 2545-20 M12 FUEL provides selectable orbital pendulum levels:
- 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 Milwaukee 2545-20 M12 FUEL
Is the Milwaukee 2545-20 M12 FUEL sold as a bare tool or a kit?
Most retailers list the Milwaukee 2545-20 M12 FUEL as a Bare Tool (tool-only), which is ideal for tradespeople who already own Milwaukee M12 FUEL 12V Lithium-Ion batteries and chargers. If you are starting fresh on this platform, search for starter bundles that include a battery pack, charger, and carrying bag.
How long does a single charge last on the Milwaukee 2545-20 M12 FUEL?
Runtime varies with material density and feed rate, but a standard 4.0 Ah or 5.0 Ah pack typically delivers between 70 and 120 linear feet of cuts through 3/4-inch plywood or pine before requiring a recharge cycle.
Will old-style slotted blades fit the Milwaukee 2545-20 M12 FUEL?
The tool’s quick-release chuck requires universal T-shank accessories with lateral retaining tangs. Slotted U-shank blades lack the side tangs necessary for tool-free mechanical engagement and should not be used.