Dewalt 18v Cordless Combination Hammer Drills

Information On Dewalt 18 Volt Cordless Combi Hammer Drills

As with all major power tool manufacturers, Dewalt have a range of 18v cordless combi drills that have been designed for all round use in the home or workplace.

Unlike a dedicated hammer drill, their most popular models are classed as combination drills, being capable of drilling into light masonry, metals, woodwork, and plastics, and also featuring a screwdriver function.

The three clear modes on a combi hammer drill are; 1) Percussion hammer action 2) Normal drilling mode 3) Screwdriver mode.

The 18 volt motor size is the most popular "power size" of any cordless combination drill due to several factors. These are; the weight of the drill itself, the manageability whilst in use (taking into account the ergonomics and drills shape), the drills power, and above everything else, the all round capability, versatility, and performance.

Dewalts Range Of 18v Drills

The range of models manufactured by Dewalt have evolved over many years taking cutomer demand into account as well as improvements in manufacturing technology. With Dewalts history of being probably the top manufacturer in the World for cordless power tools they have updated and changed specifications and feaures on every new 18v cordless drill they have launched.

Recent models include the Dewalt DC988KA and the DC925 models. Both are very similar in design and construction, being capable of tough regular use by professional tradesmen that need a tool for daily use.

Dewalt DC988KA 18v Cordless Hammer Drill

This is a great value for money cordless hammer drill featuring a 18 volt motor for its power source, with current provided by 2 x 2.4aH NiCd batteries. Having a 13 mm keyless chuck the DC988KA can accept all popular sizes of drill and screwdriver bits with the drill capable of accurate drilling up to the following specifications:

• Wood - 50 mm
• Metals - 13 mm
• Masonry - 16 mm

As standard equipment this Dewalt cordless drill features a three (3) speed gearbox (with metal internal gearing), a multi position torque control, variable speed trigger action (fitted with a reverse action), electronic brake, and a fan cooled motor. For easy servicing the motor fitted to the DC988KA has replacement carbon brushes. Replacement is simple and fast for anyone used to servicing or repairing power tools.

For fast charging of its batteries the Dewalt DC988KA uses a rapid battery charger. The model number supplied with this particular drill is normally the DE9116 unit.

Dewalt DCD925B2 18v Cordless Drill

A later model than the DC988KA, this combination drill also features a three (3) speed gearbox providing three operating speed ranges to suit most tasks it is asked of. The lower gear provides optimum torque for powerful hammer action drilling into most types of masonry. When fitted with a masonry drill bit the DCD925B2 can drill into bricks, blocks, stone, and light concrete.

The second speed gives a medium speed range suitable for a wide range of applications. Different types of metal, plastics, and other materials can be tackled with this setting chosen. The third speed allows this 18v drill to run at a maximum no load speed of 2000 rpm. Hard and soft woods can be easily drilled with the Dewalt DCD925 on this gear setting, especially when twist or spade type drill bits are used.

The rechargeable battery packs supplied with the DCD925 B2 are not of the cheapest specification. As standard equipment each purchaser of this model will receive 2 x 2.6aH NiMh batteries giving this 18v drill a long running time on each charge. This particular model is also fitted with an extra sensitive variable speed control which increases user control when drilling and screwdriving.

Dewalt DCD925B2 Cordless Hammer Drill XRP

Dewalt DCD925 B2 18v Drill Product Information









The DCD925 is a versatile and powerful cordless hammer drill that is suitable for a wide range of uses at home or in the workplace.

As with all Dewalt cordless power tools this model is of an improved design over its predessor, the DC925 combi drill. This is by way of its overall design, as well as its ergonomics and specifications.

The Dewalt DCD925B2 is driven by a powerful 18 volt battery motor for heavy duty drilling and screwdriving applications. The batteries supplied with this unit as standard are the renowned XRP 18v NiMh battery packs. Two of these are included with the purchase of the DCD925 giving the drill an excellent runtime whether it is being used for screwdriving applications or work drilling into metal, wood, plastics, or masonry. The capacity of the rechargeable battery packs is 2.6aH, and when placed in the packaged charger unit require only a 40 minute charge time to be ready for use with full power.

The battery charger is an "intelligent" Dewalt Battery Charger that maintains the battery condition as well as charging it. It can also be used for a quick top up of the DCD925's battery packs if needed, and at any time.

Being a combination drill this new model has three (3) modes; 1) Hammer action for drilling into all types of masonry including bricks, blocks, slabs, plaster, stone, marble, and light concrete. 2) Drilling mode used for rapid boring into all types of hard and soft woods as well as plastics and metals. 3) Screwdriver mode for controlled screwing of fasteners and fixings.

Three (3) Speed Metal Gearbox

To allow this drill to perform over a wide speed range (both chuck and motor) the Dewalt DCD925B2 is fitted with a three (3) speed gearbox. Coupled with an ultra smooth gear selector this gives the drill three operating speeds. When used in conjunction with its variable trigger control this gives speed ranges of:

(1) 0-500 rpm / (2) 0-1250rpm / (3) 0-2000rpm

Unlike older models of cordless drill drivers and dedicated cordless hammer drills it is this wide speed range that makes the DCD925 a versatile and great all round tool for the professional user.

Comparison To The Dewalt DC988KA

The new model is sold alongside the DC988KA model combination drill which is well known to most builders, joiners, plumbers, electricians, and other professional tradesmen. The DC988 is a good value for money cordless drill that has been on sale for several years now, having been dropped from the Dewalt range at one point, and then resurrected again.

With lower specifications than the new DCD925 it is normally not first choice for the user looking to buy the best and latest model, but is aimed at the user that has a limited budget but which would rather stick with a Dewalt Power Tool because of their strength, robustness, and high performance.

Dewalt DCD925B Specifications:

• 3 Mode Combination Drill
• 18 Volt Battery
• 2.6aH Battery Capacity
• 13mm Chuck Capacity
• 450w Electric Motor
• Weight - 2.9 kg
• Batteries x2 (NiMh)
• 40 Minute Full Charge Type
• Intelligent Battery Charger
• Max Torque 55 Nm
• Variable Speed & Reverse Action
• 13mm Keyless Chuck (Metal)
• Chuck Capacity 1.5mm - 13mm
• Auto Spindle Lock
• Drilling Capacity - 50mm Wood
• Drilling Capacity - 13mm Metal
• Drilling Capacity - 16mm Masonry
• White LED Integral Worklight
• 22 Position Torque Clutch Control
• Supplied With Side Handle
• Carry Case
• 12 Month Warranty (Trade Use)

Summary Of This Dewalt Cordless Hammer Drill

The Dewalt DCD925 B2 can tackle most tasks the professional user will throw at it. By using the drills three speed gearbox it is capable of drilling into metal, wood, and timber with perfect control. Accurate screwdriving especially with large capacity wood screws is easy for this drill, helped by the 22 position torque control and variable speed trigger action. Removing screws and fasteners can be described as "childs play" when the reverse action is selected.

The busy tradesman will appreciate the speed with which drill bits or other accessories can be swapped using the standard keyless 13mm heavy duty chuck. The auto spindle lock fitted allows single handed use with this particular chuck.

This particular model cordless combination hammer drill is the not the cheapest you can buy, but it is a great all rounder offering strong performance over many other rival brands. A statement about Dewalt Power Tools is that they are guaranteed to be tough, powerful, precise, and reliable.

In addition ergonomics now play a big part with modern cordless drills. This also applies to this model with it having a good overall balance, a reasonable weight, and fitted rubber grips. These features increase comfort for the user w hen working for long periods of time with the Dewalt DCD925B2.

Dewalt DC988KA 18v Combination Drill

DC988Ka Rechargeable Cordless Combi Drill

This particular cordless battery operated drill is one of the most popular professional power tools bought by tradesmen worldwide.

As with all Dewalt Tools, what makes this combination drill different from other brands is the high build quality, it's robustness, and above everything else, it's high performance at being able to drill effectively into a wide range of construction materials.

The Dewalt DC988KA 18 volt drill is a combination hammer action drill capable of cordless drilling into wood, plastic, metal, plasterboard, plastics, laminates, brick, stone, concrete, as well as many other types of materials.

It's hammer action (a percussion type action) can be turned off or on allowing it to also drill into materials other than masonry. By utilising it's variable speed and two speed gearbox the DC988 is also a strong performer when drilling into steel, aluminium, brass, copper, marble, timber, and plastics.

Especially useful when drilling into stone work is the reverse action fitted to this cordless drill. This allows easy removal of the drill bit being used by simply reversing the bit out of the hole. At the same time this also clears the hole of any masonry dust present.

When drilling into thick gauge steel drill bits have a tendency to become stuck. Again, with the Dewalt DC988KA this is not a problem. The reverse action can be selected permitting the drill bit to be "backed out" and safely removed.

Having a large capacity keyless chuck this combi drill is also capable of accepting large diameter "zip" and "auger" wood drilling bits. By using these or a standard wood bit this 18 volt drill is capable of drilling a hole in timber of up to 50mm diameter in size. One thing worth mentioning regarding this particular drill is the units capability of delivering very high levels of torque. To avoid unnecessarily the breaking of drill or screwdriver bits because of this it is recommended not to use cheap accessories but to use well known branded ones instead.

The high torque figure this model delivers is a real bonus to the way this power tool performs. This is why the DC988KA can drill very large capacity holes even though it is a cordless drill and not an electric one.

Masonry drilling with this tool is recommended with the lower speed (first gear) selected. Although this lowers the chuck rotation speed it allows the motor to run at full pace and at maximum torque. With the percussion hammer action switched on the DC988 KA is capable of drilling holes up to 16mm in diameter in bricks, blocks, cement, stone, and light concrete.

For drilling into steel and other metals holes up to 13mm in diameter can be bored using standard or cobalt drill bits. The recommended gear chosen should be either low or medium (this Dewalt cordless drill has three gears in total) depending on the diameter and thickness of metal being worked on.

Different types of metal may require a lubricating oil or cutting fluid to be applied to assist the drilling procedure being carried out. This acts by cooling the drill bit as well as the metal itself.

A major benefit of the Dewalt DC988KA Cordless drill over other brands is the units predominantly metal chuck. Keyless in design allowing simple and fast changing of accessories, this metal chuck features serrated teeth to tightly grip any bit being used. The metal chuck will allow fitment of drill bits, screwdriver bits, hole saws, and other tool accessories that have a diameter shaft from 3mm to 13mm in size.

Screwdriving Ability: This model can comfortably handle a wide range of screwdriving and fixing applications. In conjuction with the keyless chuck and three (3) speed metal component gearbox this model also has a variable and reverse action trigger speed control as well as multiple setting clutch - torque control. In total there are 22 positions available allowing the user to preset the drill for the job in hand.

Screws and other fixings can be easily applied into a wide range of materials by using the correct combination of settings. Wood screws can be driven into soft and hard timber with the screwheads flush, proud, or reccessed as required. By using the correct torque setting soft screws such as brass screws can be prevented from breaking saving money as well as labour time on the particular job being carried out.

The high torque fiqure this Dewalt Drill delivers also means this model is capable of fastening and tightening metal bolts and nuts as well. Providing up to 52Nm of torque means the DC988 can be used for metal assembly and fabrication tasks, especially work such as assembling metal shelving, constructing boxes, and structures.

All these qualities identifies the Dewalt DC988KA as an ideal power tool for a wide range of uses whether it be a keen diy'er at home, a builder, joiner, electrician, plumber, metal fabricator, handyman, mechanic, or engineer.