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OSHA’s Crystalline Silica Standard will be in effect September 23, 2017. OSHA is issuing the standard to protect workers from exposure to respirable crystalline silica in the construction industry in order to allow employers to tailor solutions to the specific conditions in their workplaces.

The new standard has had tool manufacturers working overtime to engineer tools and too attachments that will keep us productive while meeting the dust collection requirements. Here at The Hub we will be sharing reviews and information in the coming days and weeks leading up to September 23 date showing the various tools and attachments you might consider for your own compliance. Here is our first review:
https://youtu.be/mWLfwgkPLCc

Bosch HDC100 Dust Collection Attachment

Bosch knows concrete and the tools needed to work efficiently and effectively on the plumbing & hvac job site. Whether you’re working with a Bosch Bulldog rotary hammer or nearly any other modern rotary hammer of another brand this attachment is simple to install and use and is priced right in our opinion.

We’re referring to the HDC100 as a “universal” attachment, though it’s not listed as such on Bosch’s website it will fit any modern rotary hammer with a barrel mounting neck for a standard auxiliary handle (see pic above).

The 1.5lb composite plastic dust collection attachment has a built-in depth stop with a maximum drilling depth of 4-3/4” and can handle SDS drill bits up to ¾” diameter, dry core drilling up to 3-1/8” diameter [when using the core bit adapter, included].

As seen in the video the HDC100 is very effective at collecting nearly 100% of the dust from the ½” holes drilled for the drop-in anchors, an extremely common task on any mechanical job site. The dust port can be hooked up to a 1-3/8-In. vacuum hose nozzle, or it can accommodate 1-1/4-In. or 2-In. nozzles when combined with an appropriate optional adapter.

It is important to note that the HDC100 alone is not all that is needed for compliance with the OSHA standard. The HDC100 must be connected to a HEPA rated dust collector vacuum that meets the minimum requirements of the Crystalline Silica Standard to be compliant. In the video we are using the Bosch GBH18V-26 18V EC Brushless 1 In. SDS-plus® Bulldog Rotary Hammer and Bosch VAC090A 9 Gallon Dust Extractor with Automatic Filter Clean.

We have done some online price searches and found that nearly all Bosch tool retailers are listing the HDC100 at $69-70 US, its available for purchase currently.

This is only one of many tools Bosch has engineered to meet the OSHA standard, please watch for reviews of additional tools soon here on mechanical-hub.com.

Screwdrivers are screwdrivers, right? In as many years on the job as I’ve had I’ve personally used or seen screwdrivers used for any number of purposes beyond their original intent. I’m not proud of that but sometimes you do what you have to do. Then one day you realize the value of a nicely designed tool and would in no way misuse it like the many tha came before it.

This is one of those tools. Take one a look at its compact design, fine machining and ergonomic design and its easy to see why we chose to do a review on something as simple as a screwdriver. I’ve heard others affectionately call this the “James Bond” of screwdrivers and for good reason. Take a look at the video, its only one minute long and I’ll show you all the features of this cool tool. If you’re interested in purchasing it visit our friends over at KC Tool.

https://www.youtube.com/watch?v=fYUj62ByHhw

The Hub is in Missoula with ProStaff team member Andy Mickelson on a recent residential gas fired Hydronic comfort heating system installation. Featured here is the Neutra-Safe® System Feeder, which is designed to feed and maintain pressure in closed loop hydronic and thermal solar systems that require up to 50 PSI of cold static pressure for use with water or glycol (up to 50%) solutions. For more info on Neutra-Safe, visit  www.neutrasafe.com.

Dewalt’s Flexvolt 60V Stud & Joist Drill may look familiar, I mean without the battery and add a cord, paint it red and you might be reminded of an old industry mainstay. But let’s forget about that old drill, made by another manufacturer and focus on what I might call the most powerful cordless tool I have ever used.

The two variable speed settings (forward, with single speed reverse) coupled with the ” E-Clutch® System” make for a high performance machine ready to handle probably anything you throw at it. I must remain honest and admit that I entered this review thinking I already knew how it would perform but not only that but how I would be sure to point out a huge flaw in the overall design. After using the drill on multiple projects, large and small, I can not say I have found a definitive job task this drill should be able to perform but cannot. Because it can and will, and it will do it faster and safer than any other drill before.

The E-Clutch system senses reactionary torque caused by a bind-up or stall and reduces speed to a manageable level until control is regained. This is a significant technology and the first in any large pattern, full-sized rough-in drill I have used. All right-angle drills I have used, owned or tested have had mechanical clutches. Mechanical clutches are sufficient only that they will save your knuckles, face or knuckles and face sometimes but the problem is they will not always prevent a hard stop or throw from a ladder. In fact most of the time when a mechanical clutch engages on large right angle drills the user is thrown or pinned up against a nearby object and almost always materials are damaged. The E-Clutch is sensitive but will allow you to get the job done without excessive engagement and stopping. Its so smooth it will take a few engagements before you’re completely aware of why the drill stopped and what exactly is going on, I know I felt this way at first and drilling with a right angle drill is nothing new for me this long into my plumbing career.

For the video review I loaded the drill with a 3.0Ah Flexvolt (9Ah 20V equivalent) battery,fully charged. The battery had been used multiple times before on other Flexvolt and 20V MAX tools. After drilling every hole needed to complete the drain, waste and venting rough-in on a three bath house, 40 holes 2-9/16″ & 3-5/8″ diameter, the battery had used 1/3 of the total capacity as indicated by illuminating 2 of the three LED lights on the battery when finished. The whole house was drilled using nothing but cordless and not more than one battery. What a time to be alive.

The weight of the drill and its balance seem comfortable although the d-handle protruding off the backside of the head is less useful for actually drilling than it is useful for carrying and pulling the drill and bit from a completed hole. I have not used the side handle bar for any holes to date but it is included in the kit and would be useful for added control while drilling or mixing various materials like small batches of concrete or drywall compound etc.

Overall I was thoroughly impressed, I could not find any detail that stood out as a flaw or that I would consider suggesting to change. It provides more than enough power needed to complete a plumbing, hvac or electrical rough-in with ease. Its fast and efficient in its use of battery power; evident by the battery capacity used to drill all the needed holes in the video. As the Flexvolt system continues to grow and remains backwards compatible with all the 20V MAX tools I can without a doubt recommend taking a close look at this tool if you’re thinking of trying a new tool line or already on the 20V MAX platform and need to add a high performance right angle drill to your tool arsenal.