This will depend on what you plan to use it for. Power and size wise, you will not really notice the difference between the two. However, when it come to precision and control, The DTD171 is the best Makita impact driver for this. The DTD171 gives you more pre-set power options, as well as 4 assist mods for different types of jobs.

The DTD172 is a brushless impact driver powered by an 18v LXT Li-Ion battery. Key features include a LED job light with pre-glow & after glow function. In line with all new Makita tools the performance increases whilst the overall size of the machines decreases. The DTD has a 1 mode which is the following: Tek Mode – This mode gives you full power at the beginning of driving the screw in, once the screw is almost all the way in, the impact driver reduces power to ensure the screw is flush, and to avoid over tingeing of the screw, and screw cam-out. Is it Worth Upgrading From The DTD154 to DTD171? The MAKITA DC18RC has a cooling fan that blows cool air into the battery. A digital power display identifies the condition of the battery and charging condition.

There is plenty of power in this tool and it will do most jobs for amatuer and professional users alike. 180nm is enough for any user and I found we never needed to use the highest setting for any job. Home/ Shop/ Power Tools/ Cordless Power Tools/ Cordless Impact Drivers/Makita DTD171ZJ Cordless 18V 1/4 Brushless 4-Stage Impact Driver And Makpac Case Makita DTD171ZJ Cordless 18V 1/4 Brushless 4-Stage Impact Driver And Makpac Case Their HQ is in Japan. Their Telford manufacturing plant is the only full-production facility for power tools in the UK and has been successfully running construction on many of our top line cordless power tools since 1991. This is where you begin the notice the differences between the two 18v Makita impact drivers. The Makita DTD171 has 4 pre-set speed settings, and they are: Max: Thanks for taking your time to read our review of the Makita DTD171Z Impact Driver. Below we have included a full and detailed review of this highly popular choice for UK buyers.

The Makita DTD171 is slightly small at 116mm compared to the DTD154’s 117mm in length. The high of the impact driver will depend on the battery you use. Adjustable Speed Settings and Modes Although a century-old, Makita in terms of power tool manufacturer is relatively younger than its competition on the market. When you have a big job on then it makes sense to go for the biggest battery. So I would suggest the 6ah battery which is the most powerful in the range. The Makita DTD171 18V LXT Brushless Impact Driver from ITS is the topline 18V driver model available from Makita with an impressive list of specifications to show for it. Brushless motor: The brushless design on this impact driver’s motor means that it continuously offers frictionless performance with little to no maintenance. This saw’s motor has a smaller number of moving parts, giving it the advantage of a more compact design.Amazing, far superior than previous Makita impact (which was great). Torque settings give excellent control for any task. Couldn’t find it cheaper elsewhere, top marks for DVS for their free, speedy dispatch and delivery service.