Skip Content


12V Standard Li-Ion 3/8" Cordless Drill/Driver, Bare Tool

  • Item # 46U403
  • My Part #
  • Mfr. Model # PS31BN
  • Catalog Page # 691
  • UNSPSC # 27112703
Cordless Drill/Driver,Bare,12.0V,3/8in. close

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.

CAD Downloads

Web Price $91.20 / each
Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Want to Get Free Shipping?

Jump to:
  • Shipping Weight 2.6 lbs.
Country of Origin Mexico Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

The Bosch 12V Max 3/8" drill/driver delivers professional-grade power for a variety of tasks. At just over 2 lb. it offers portability, while still providing 265 in.-lb. of max torque. With 2 speeds (0-350 rpm and 0-1,300 rpm) and 20+1 torque settings, it is the ideal carry-along solution for applications, such as installing electrical work that requires a great deal of overhead drilling and driving.

• 3/8" single-sleeve 3-jaw chuck
• Integrated LED light
• Integrated fuel gauge

View More

Technical Specs

  • Item Cordless Drill/Driver
  • Voltage 12.0
  • Battery Included / Bare Tool Bare Tool
  • Battery Capacity None
  • Cordless Tool Battery Type Li-Ion
  • Brushless Motor No
  • Number of Batteries 0
  • Series 12V Standard
  • No Load RPM 0 to 350/0 to 1300
  • Chuck Size 3/8"
  • Max. Torque 265 in.-lb.
  • Battery Included No
  • Corded/Cordless Cordless
  • Transmission 2-Speed
  • Clutch Style 20+1 Position Adjustable
  • Handle Type T-Handle
  • Battery Pack Replacement 4WLH6
  • Chuck Keyless
  • Tool Length 13-1/2"
  • Tool Weight 2.6 lb.
  • Includes Exact Fit Tool Insert Tray
  • Green Environmental Attribute Product is Rechargeable
How can we improve our Technical Specifications?

Compliance and Restrictions

  • - This item has been designated by the manufacturer as an environmentally preferable product (EPP) because this item is Product is Rechargeable.

Replacement Parts

Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.

Related Products

Customer Reviews

Rated 4.8 out of 5 by 19reviewers.
Rated 5 out of 5 by more power then you would think Got this one for my wife, she has a hard time holding my 18 volt, thought it was a cute little thing, after using it a few times I have claimed it for myself, great battery life and good power for such a small package July 26, 2014
Rated 5 out of 5 by Another handy tool Finished up another home remodel project with this tool. It's compact takes on all drilling challenges up to the chuck capacity. Like all the Bosch tools it's power packed and you can always count on them to deliver. Have several of the compact 12v tools not a one disappoints. And the fact they all use the same battery is awesome!! Go Bosch. July 25, 2014
Rated 5 out of 5 by Good Drill I bought the PS41-2A last year to go along with my old corded Bosch drill because I need the impact feature. My cordless 3/8s drill has served me well for 20 years but since I already had the two batteries with my impactor I thought it was just dumb not to have the PS31-Bn to go along with it. I'm very pleased with it as well. As a lot of my work is installing cabinetry, the small size is perfect to have in the tool belt. Batteries last forever and plenty of power for 90% of drilling. Will be looking to upgrade to brushless at some point needless to say. May 26, 2014
Rated 5 out of 5 by Great Tool I bought a set of Impact Wrench and Drill about a month ago and they have been great. The battery has lasted through all my projects and have had the power needed to handle everything. Great investment. May 20, 2014
Rated 5 out of 5 by Bought it for it's size, use it 90% of the time! It's small and light and will do the job most of the time for most homeowners or advanced DIY'ers. May 19, 2014
Rated 5 out of 5 by Machine Shop I operate a CNC Mill and I use it for deburring my parts using a 6 flute chamfer mill bit. Works great!1 April 29, 2014
Rated 5 out of 5 by Compact size with more than enough power! I bought this compact drill for my work. Small size with enough power to finish HVAC job easier and quicker. Battery charges fast. It will be interesting to try one with hammer drill function. For intensiveness of the work, most our power tools are not going to be last got couple years, so 3 year Warranty on tool and 2 year on battery will be plenty to cover. April 11, 2014
Rated 5 out of 5 by Great little drill I've had this drill for about 9 months now and I am very happy with it. It's very small and lightweight and perfect for around the house jobs. April 11, 2014
  • 2015-09-08T19:47:51.880-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_19, tr_19
  • loc_en_US, sid_46U403, prod, sort_default

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.