These are brick profiles that are made out of 40x40x3mm steel box section with notches cut in at every 75mm so your string line is always at the correct height. As well as the bars being straight, strong and sturdy they are also fairly lightweight so easy to move around the site.
eBay
20Pcs Aluminum Profile Connector for Slot 6mm 2020 Series Aluminum Extrusion Profile Rail Accessories
Aliexpress UK
The Mustang DQ15 External Bricklaying Corner Profile eliminates the need for corner building and greatly improves the speed of and accuracy of bricklaying. Clamping into the brickwork to provide an accurate guideline, the user can lay 25 courses to the line from the D.P.C. with the DQ15 while also being able to continue pointing behind the profile.
eBay
20Inch Contour Gauge Plastic Profile Copy Contour Gauge Super Quality Template Tiling Skirting Laminate Profile Measuring Tool
Aliexpress UK
Bricklayers Profile Gauge Tape. Fair wear and tear is not covered. YOU MUST FOLLOW THE INSTRUCTIONS ON THE CARD. Our carriers will not leave parcels without a signature. International Orders. ZONE 2 (Highlands & Islands of Scotland):- IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PA49-50, ZE.
eBay
Aluminum Profile Positioning Punching Locator 20/30/40 Series Profile Universal Drilling Jig Set with M6 and M8 Step Drill Bits
Aliexpress UK
eBay
2 Pcs Aluminum Alloy Pivot Joint for Aluminum Extrusion Profile 2020 Series Flexible Pivot Joint 2020 Aluminum Profile
Aliexpress UK
RHINOBUILD - Gable End Profile (Single). Includes 40mm Mini RHINOGRIP thumbscrew to allow Gable End Profile to be securely fixed to 50 x 30mm roofing battens. Clamp length: 350mm.
eBay
HPA Compressed Air Mini Micro Pressure Gauge Manometre Manometer W/1/8BSPP(G1/8),1/8NPT Small Profile
Aliexpress UK
4 x 1.8m (50x50) aluminium bricklaying profiles. Kit contains 4no Brick Profiles ONLY Eliminates the need for corner building, quick and easy to set up 50 x 50 aluminium box (3mm wall thickness) Containing gauge tape with markings every 75mm Very light weight so easily carried up and down ladders on site If needed Very strong - profiles will not bend or rust Plastic caps on the ends to protect profiles from Motar build up No bricky should go without. Quick and easy set up and will make your money back first day of use This kit contains: 4no 1.8m profiles (50x50)
eBay
3D Printer parts 2020 V gantry plat set special slide plate pulley for 2020 V-slot aluminum profiles wheels
Aliexpress UK
Pack of 4 Brick Profile F-Clamps (Brick Layer Clamps) These clamps are also ideal for general clamping applications and DIY work Heavy duty cast iron clamp heads with soft plastic jaw guards to help prevent damage to surface Dimensions: 50mm x 300mm 50mm throat depth .
eBay
10Meters 20/30/40/50 Series 6mm/8mm/10mm Flat seal for 2020 Aluminum profile Soft Slot Cover/Panel Holder C-Beam machine
Aliexpress UK
Application: Bricklaying, Block Work, Timber Framing, Fencing. Suitable for fencing, timber framing, masonry, and construction work. Fencing & Timber Framing. Fits square timber sizes: 76x76mm, 63x63mm, 50x50mm & 38x38mm.
eBay
TTS-55 Laser Engraver Frame Kit DIY Laser Engraving Aluminum Profile Frame Engraving Size Upgrade Expansion Kit For TTS-10/10
Aliexpress UK