---
product_id: 105780187
title: "Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries"
brand: "calculated industries"
price: "$U4251"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/105780187-calculated-industries-8105-blind-mark-drywall-electrical-box-locator-tool
store_origin: UY
region: Uruguay
---

# Rare-earth magnets for pinpoint accuracy Cuts drywall openings twice as fast Includes 3 targets for multi-box marking Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries

**Brand:** calculated industries
**Price:** $U4251
**Availability:** ✅ In Stock

## Summary

> 🧲 Nail Your Drywall Cuts Without the Hassle!

## Quick Answers

- **What is this?** Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries by calculated industries
- **How much does it cost?** $U4251 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/105780187-calculated-industries-8105-blind-mark-drywall-electrical-box-locator-tool)

## Best For

- calculated industries enthusiasts

## Why This Product

- Trusted calculated industries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Kit with Rugged Case:** High-quality plastic targets and locator stored safely in a tough carrying case for easy transport and organization.
- • **Versatile Targets for Any Job:** Three magnetic targets fit standard single and multi-gang boxes for new construction or remodels.
- • **Cut Drywall Like a Pro, No Measuring Needed:** Powerful magnets locate electrical boxes through drywall, eliminating guesswork and errors.
- • **Perfect Cuts Every Time, No Patching Required:** Twice the accuracy means no more oversized holes or unsightly patches—professional results guaranteed.
- • **Save Time & Energy with One Lift Installation:** Mark and cut openings with just one drywall lift—cut your fatigue and project time in half.

## Overview

The Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool uses patented rare-earth magnets to locate electrical boxes behind drywall quickly and accurately. Designed for professionals and DIYers alike, it includes three magnetic targets and a locator magnet, enabling flawless cutouts without measuring. This tool reduces drywall installation time by half, minimizes lifting, and ensures perfect openings for single or multi-gang boxes, all stored in a rugged carrying case for convenience.

## Description

Now Find Mark Electrical Boxes for Cutouts TWICE as Fast ; With NO Measuring! The Blind Mark electrical outlet box locator kit uses powerful rare-earth magnets to help you accurately locate and mark electrical outlet access holes for cutouts during installation of drywall, paneling and other materials, all with NO measuring required! SAVE A TON OF TIME INSTALLING DRYWALL ; with Blind Mark you simply place the targets in the outlet boxes, tack the drywall into place, use the locator to find the targets behind the drywall, mark the location then cut the hole. TWICE AS ACCURATE ; no more mis-measured and mis-cut drywall openings or having to patch mis-cuts or need to buy oversize plate covers. With Blind Mark you ;ll cut perfect openings every time. HANG IT ONCE, CUT IT RIGHT ; while other drywall locator methods require you to lift and lower heavy drywall sheets multiple times to mark, cut, then install, with Blind Mark you simply put it up once, cut the hole and you're done. HALF THE LIFTING ; because you only lift the drywall once to install it you not only finish in half the time but with much less fatigue or chance of injury or damage to fragile drywall corners. MULTIPLE MATERIALS ; works on drywall, sheetrock, plywood, paneling, particle board, laminated flooring, Masonite, exterior siding, cement board, tile backsplashes, slate and more! THIS KIT INCLUDES ; 3 targets with super strong magnets enable you to find multiple boxes at once for even greater time savings. Rugged storage case keeps the high quality plastic targets and locator organized and protected between projects. Why make drywall installation harder than it has to be? Let Blind Mark take the guesswork and the grunt work out of finding and cutting hidden electrical boxes. Click the Add to Cart button now! Copyright 2021 Calculated Industries. All rights reserved.

## Features

- PERFECT DRYWALL CUTOUTS you can be proud of in half the time with NO measuring! Powerful rare-earth magnets that find each other through drywall, eliminates the need for time consuming, error-prone measurements
- GET PROFESSIONAL RESULTS you can be proud of (even if its your first time hanging drywall) with foolproof and trustworthy patented technology that snaps into place; it shows you exactly where to cut
- 3 TARGETS INCLUDED fit standard single or multi-gang plastic boxes without plugs for both NEW construction or remodels; for receptacles already in place (restoration or rehab work), see our Plug Mark
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions..International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | VOKY |
| Part Number | 8105 |
| Product Dimensions | 26.04 x 12.07 x 3.18 cm; 453.59 g |
| Item model number | 8105 |
| Size | 10 Count (Pack of 487) |
| Style | Locator Tool |
| Material | Plastic |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Included Components | Includes 3 target magnets, 1 target locator magnet, and a rugged carrying case |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 454 g |

## Product Details

- **Brand:** Calculated Industries
- **Style:** Locator Tool
- **Material:** Plastic
- **Item weight:** 454 g
- **Number of pieces:** 1
- **Is electric:** Yes
- **Unit count:** 1.0 Count
- **UPC:** 854979001007 785577173264 723434515680 785533856187 796084335670 733353688501 787721523956 098584001735

## Images

![Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries - Image 1](https://m.media-amazon.com/images/I/717rP7XTW3L.jpg)
![Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries - Image 2](https://m.media-amazon.com/images/I/71glgh2KcRL.jpg)
![Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries - Image 3](https://m.media-amazon.com/images/I/71fsxWQdxmL.jpg)
![Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries - Image 4](https://m.media-amazon.com/images/I/613xdL1M+eL.jpg)
![Calculated Industries 8105 Blind Mark Drywall Electrical Box Locator Tool by Calculated Industries - Image 5](https://m.media-amazon.com/images/I/71J7wS+O0CL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: I'm confused. The gang box sticks out a half inch from the studs. How do you install the drywall without first cutting the hole?**
A: the box is only 1/4inch past studs. not 1/2. the drywall will just float over the box. so when you hang the drywall, only use 3 or 4 screws- just enough to hold it in place. then use the magnet to find your box, and cut it out. then finish screwing in the drywall. This tool works great. i just did an entire house with absolutly zero problems

**Q: Will it work through osb**
A: On the back of the box it says the following:"Works on drywall, plywood, particle board, laminated flooring, Masonite, exterior siding, cement board, tile, and slate."Thanks,General Tool

**Q: What tool are you using to cut the sheet rock i feel like a dremel would cut right through the metal wire being used to hold the magnet to the box**
A: Commercial drywallers use drywall routers/Rotozips(large Dremels spinning at 9000rpm). But you can use anything. You will not come in contact with the inside of the box, maybe the tabs of the outside of box. The outside marker magnet is larger than the inside box magnet and spring tabs. If you are worried about even touching the outside tabs of an electrical box, set your depth on the bit to that of the drywall.

**Q: Does the electrical box have to be empty**
A: With this kit, yes the box would need to be empty, but they also make something called a plug mark that plugs into an existing wall outlet.  Of course that doesn't work for light switches. But there is always lipstick for those.http://www.amazon.com/gp/product/B00XUY9FB8?psc=1&redirect=true&ref_=od_aui_detailpages02

## Frequently Bought Together

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- Calculated Industries 8115 Multi Mark Drywall Cutout Locator Tool – Powerful Rare-Earth Magnetic Targets (2) and Locator Kit
- Upgrade 2 Pcs Square Slot Cutter Compatible for Dewalt 20V & Milwukee M18 Oscillating Multi-Tool to Cut-in Single Gang Wall Boxes,Outlet Cutter for Drywall,Efficient Carving Tool,Black

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-25*