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DRILLING METAL

There are two rules for drilling hard materials. First, the harder the material, the greater the pressure you need to apply to the tool. Second, the harder the material, the slower the speed. Here are a couple of tips for drilling in metal. Lubricate the tip of the bit occasionally with cutting oil except when drilling soft metals such as aluminum, copper or cast iron. If the hole to be drilled is fairly large, drill a smaller hole first, then enlarge to the required size, it’s often faster in the long run. Maintain enough pressure to assure that the bit does not just spin in the hole. This will dull the bit and greatly shorten its life.

DRILLING MASONRY

Soft materials such as brick are relatively easy to drill. Concrete however, will require much

more pressure to keep the bit from spinning. Be sure to use carbide tip bits for all masonry work.

!WARNING Before using an accessory, be certain that its maximum

safe operating speed is not exceeded by the nameplate speed of the tool. Do not exceed the recommended wheel diameter.

RUNNING NUTS AND BOLTS

Variable speed control must be used with caution for driving nuts and bolts with socket set attachments. The technique is to start slowly, increasing speed as the nut or bolt runs down. Set the nut or bolt snugly by slowing the drill to a stop. If this procedure is not followed, the tool will have a tendency to torque or twist in your hands when the nut or bolt seats.

FIG. 6

INSERTING AND RELEASING

BATTERY PACK

Release battery pack from tool by pressing on both sides of the battery release tabs and pull downward (Fig. 6).

To insert battery, align battery and slide battery pack into tool until it locks into position. Do not force.

BATTERY

RELEASE TABS

IMPORTANT CHARGING NOTES

1.The charger was designed to fast charge the battery only when the battery temperature is between 32˚F (0˚C) and 140˚F (60˚C). If the battery pack is too hot or too cold, the charger will not fast charge the battery. (This may happen if the battery pack is hot from heavy use). When the battery temperature returns to between 32˚F (0˚C) and 140˚F (60˚C), the charger will automatically begin charging.

2.A substantial drop in operating time per charge may mean that the battery pack is nearing the end of its life and should be replaced.

3.Remember to unplug charger during storage period.

4.If battery does not charge properly:

a.Check for voltage at outlet by plugging in some other electrical device.

b.Check to see if outlet is connected to a light switch which turns power “off” when lights are turned off.

c.Check battery pack terminals for dirt. Clean with cotton swab and alcohol if necessary.

d.If you still do not get proper charging, take or send tool, battery pack and charger to your local Bosch Service Center. See “Tools, Electric” in the Yellow Pages for names and addresses.

Note: Use of chargers or battery packs not sold by Bosch will void the warranty.

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Bosch Power Tools PS20B Drilling Metal, Drilling Masonry, Running Nuts and Bolts, Inserting and Releasing Battery Pack

PS20B, PS20-2 specifications

The Bosch Power Tools PS20-2 and PS20B are compact and versatile cordless drill/driver models designed to meet the demands of both professionals and DIY enthusiasts. Featuring a lightweight design and high-performance attributes, these tools are ideal for a variety of applications, from drilling to fastening.

One of the standout features of the PS20-2 and PS20B is their powerful motor, which delivers a torque of up to 265-inch pounds, ensuring efficient performance in tough materials. The two-speed transmission offers flexibility with speed settings of 0-350 RPM for low speeds and 0-1,300 RPM for high speeds, making it suitable for various tasks, whether it’s driving screws or drilling into wood and metal.

The PS20-2 and PS20B models come equipped with a 1/4-inch hex chuck that allows for one-handed bit changes. This feature not only saves time but also enhances convenience during operation. Additionally, both models are designed with a soft-grip handle that provides comfort during prolonged use, reducing user fatigue.

Another significant aspect of these Bosch drills is their compact size. Weighing just over two pounds and measuring approximately 7.5 inches in length, they are designed for portability and ease of maneuverability in tight spaces. This compactness does not sacrifice power or performance and makes the tools a favorite among users who require a balance of strength and accessibility.

Both models also include an integrated LED light, which illuminates the work area, crucial for working in dimly lit environments or tight spots. The PS20B is especially popular due to its inclusion of an extended battery life, allowing for longer operational times without the need for constant recharging.

In terms of technology, the Bosch PS20-2 and PS20B utilize advanced lithium-ion battery technology, which not only provides longer run times but also reduces self-discharge to keep the batteries ready for use when needed. Safety is further enhanced through integrated electronic motor protection, which helps prevent overheating and extends the motor's longevity.

In summary, the Bosch Power Tools PS20-2 and PS20B represent a blend of power, flexibility, and convenience. They are built to operate efficiently across various applications, making them an ideal choice for both light-duty tasks around the house and more demanding professional jobs. Whether you are a seasoned contractor or a home DIYer, these cordless drills offer the performance and reliability you expect from Bosch power tools.