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Skil 4280, 4240 manual Cutting Tips, Orbital Action, Model 4380 only, Cutting with a Straightedge

Models: 4280 4380 4240

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Cutting Tips

Face the good side of the material down and secure it in a bench vise or clamp it down. Draw cutting lines or designs on the side of the material facing up towards you. Then place the front edge of the saw foot on the work and line up the blade with the line to be cut. Hold the jigsaw firmly, turn it on, and press down (to keep the saw foot flat against the work) as you slowly push the saw in the direction of the cut.

Build up cutting rate gradually, cutting close to the line (unless you want to leave stock for

finish sanding). As you cut you may have to adjust or relocate the vise or clamps to keep the work stable. Do not force the saw or the blade teeth may rub and wear without cutting and the blade may break. Let the saw do most of the work. When following curves, cut slowly so the blade can cut through cross grain. This will give you an accurate cut and will prevent the blade from wandering.

 

 

ORBITAL ACTION

Note: In order to reach full orbital action, the

 

 

(Model 4380 only)

blade must be facing STRAIGHT FORWARD.

Orbital Action models, have a lever (Fig. 6)

Orbital action is not observable when jigsaw

that will regulate the orbital action from

is free running. Jigsaw must be cutting for

smooth cut position for normal up and down

orbital action to occur. The speed of cut is

motion to maximum orbital action for faster

much more apparent in thicker materials such

more aggresive cutting in softer materials.

as 2 by lumber.

 

 

 

 

 

 

 

FIG. 6

SMOOTH CUT

FAST CUT

 

 

 

 

 

 

 

 

MILD STEEL

SOFT & HARD WOODS

ORBIT

SOFT METALS

PLYWOOD

CONTROL

 

 

REDUCED SPLINTERING

PLASTIC

 

LEVER

 

 

To activate, turn the lever to fast cut. To deactivate orbital action turn lever to smooth cut. When minimal splintering is desired we recommend using smooth cut position.

CUTTING WITH A STRAIGHTEDGE

Always use a rough cut blade when possible. Clamp a straightedge on the work parallel to the line of cut and flush with the side of the saw foot. (Either first mark the line of cut and then position the straightedge parallel and at the same distance as between the blade and the side edge of the foot or first mark the side edge of the foot and then clamp the straightedge on the mark and parallel to the cut line Fig. 7)

As you cut, keep the saw foot edge flush against the straightedge and flat on the workpiece (Fig. 7).

FIG. 7

FOOT AGAINST

 

STRAIGHT-EDGE

LINE

OF

CUT

CLAMPS

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Skil 4280, 4240 manual Cutting Tips, Orbital Action, Model 4380 only, Cutting with a Straightedge
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4280, 4380, 4240 specifications

Skil has long been a trusted name in power tools, and their range of circular saws has garnered attention for their exceptional performance, durability, and user-friendly features. The Skil 4240, 4380, and 4280 models exemplify this tradition, each offering a unique set of characteristics that cater to various cutting needs.

The Skil 4240 is known for its lightweight design, making it perfect for users who require portability without sacrificing power. This saw comes equipped with a potent motor that delivers a blade speed of up to 5,200 RPM, allowing it to tackle tough materials with ease. One of the standout features of the 4240 is its innovative laser guide system, which offers precision cutting by projecting a line directly onto the material. This feature is particularly beneficial for users who demand accuracy in their projects. Along with a depth adjustment feature, the 4240 allows for bevel cuts up to 45 degrees, enhancing its versatility for a variety of applications.

Moving on, the Skil 4380 introduces additional features that cater to those tackling heavier-duty projects. Similar to its counterpart, the 4380 boasts a powerful motor and a high RPM rate, but it also incorporates a built-in dust blower that keeps the cutting line clear of debris, ensuring enhanced visibility and cleaner cuts. The 4380 also features an ergonomic design that improves user comfort, allowing for prolonged use without fatigue. Its heavy-duty aluminum base adds strength, ensuring durability across various job sites.

The Skil 4280 model enhances the user experience further, integrating advanced technologies for superior performance. This model includes a soft-start feature that gradually ramps up the motor speed, reducing the initial torque, which helps prevent kickback. The 4280's superior stability and balanced weight distribution enable precise control, especially in intricate cuts. Additionally, it has a quick-release blade change system, allowing users to switch out blades effortlessly without the need for extra tools.

In conclusion, the Skil 4240, 4380, and 4280 circular saws cater to a diverse audience by blending power, precision, and ease of use. Each model introduces unique features and technologies designed to provide superior cutting performance across a range of materials and applications. Whether you are a DIY enthusiast or a professional tradesperson, these saws are poised to deliver exceptional results on every project.