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Reference Point Locator · Senses up to 30 in through concrete and 60 in through wood frame walls · Magnetic target system · Rack-A-Tiers 42900
SKU: 42900
Magnespot is a magnetic reference point locator used to identify a drill or cut location from the opposite side of a wall, floor, or ceiling. Manufacturer-listed sensing range is up to 30 in (762 mm) through concrete and 60 in (1.52 m) through wood frame walls, helping electricians reduce blind drilling.
What this product is for
The Rack-A-Tiers Magnespot is a magnetic reference point locator for electricians and contractors who need to transfer a point through a wall, floor, or ceiling before drilling or cutting. It is designed to help locate the intended exit or entry point when working where direct sightlines are not available.
Use for
Use it for locating reference points through finished surfaces, concrete, and framed wall assemblies before drilling, coring, or cutting. It is commonly used when installing conduit, cable pathways, boxes, and other rough-in work where accuracy matters.
Avoid for
Avoid using it as a substitute for scanning for concealed hazards. It is not a stud finder, live wire detector, or guarantee against hidden mechanical or electrical services. Always verify the work area before drilling or cutting.
Best for
Best for service work, retrofit work, and finished-space installations where blind drilling can lead to rework or surface damage. It is especially useful when you need to transfer a point between opposite sides of a wall or floor assembly with more confidence.
Installed in
Typically used on commercial, institutional, and residential job sites during layout, retrofit, and conduit installation work. Suitable for use around wood frame wall assemblies and concrete where the listed sensing range applies.
Why this product exists
This tool exists to reduce guesswork when drilling or cutting where the opposite side is concealed. In trade use, that can help reduce patching, misplaced holes, and time spent rechecking layout before penetration.
Compared with similar products
Compared with basic visual layout methods, a magnetic reference locator can provide a more direct way to transfer a point through a structure. Compared with electronic scanners, this product is focused on point location rather than broad material detection. Actual results depend on wall construction, thickness, embedded materials, and site conditions.
Specifications
- Brand: Rack-A-Tiers
- Manufacturer part number: 42900
- Product name: Magnespot
- Product type: Reference point locator
- Detection range through concrete: up to 30 in (762 mm)
- Detection range through wood frame wall: up to 60 in (1.52 m)
- UPC: 625912429000
- Typical application: locating drill or cut points through walls, floors, and ceilings
Typical guidance only: performance can vary with assembly thickness, material density, embedded metal, insulation, and layout conditions.
Minimum Order $20
We accept the following payment methods:
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Click here for Contractor Cash Account
Trade Credit is a standard financing option for contractors and construction companies to obtain supplies and keep their projects moving. We offer 30-day credit terms to trade contractors on approved applications only.
Click here for Contractor Credit Account 
Standard Shipping-Free on orders over $500 in Metropolitan Areas / Subject to $750 in Rural Areas.
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998(Updated August 2026)
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.
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