Swanson Tool Big 12 Speed Square with Plain Markings, Blue Book - T0108

Swanson Tool Big 12 Speed Square with Plain Markings, Blue Book - T0108

The Big 12 Speed Square is a 12 in. Version of the Swanson Speed Square. This innovative tool combines 5 tools into 1: 1. Try Square, 2. Miter square, 3. saw guide, 4. line scriber, and 5. protractor. The Big 12 Speed Square is die-cast for durability and accuracy. Made of heavy-gauge aerospace Aluminum alloy, it is built to last. This model includes the Swanson Blue Book for roof and stairway layout and also features markings for using the Swanson one-number method of rafter layout. The Swanson Speed Square is our most popular product and remains the most trusted square of its kind. Look for the Diamond cutout for genuine Swanson products. Note: this item does not include the layout bar or corresponding hardware used with the S0107 Big 12 Speed Square.

Brand
Swanson Tool
Product identifiers
00038987001086
Exact variant
{"Colors":["Blue"]}
Source updated
Fri Oct 09 2026 17:32:24 GMT+0000 (Coordinated Universal Time)
Imported
Thu Oct 08 2026 16:08:27 GMT+0000 (Coordinated Universal Time)

Advertiser-supplied specifications and terms

These are source claims, not independent testing. Shipping rates and discounts may have regional restrictions.

Condition
New
OriginalPrice
19.99
ShippingWeight
1.28
ShippingWeightUnit
lb

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