Alvin SK450-12 12 inch Smoke-Tint Triangle 45/90

Manufacturer: National Cellular Brand: Alvin Model: LX710K

Rise and slope graduations. Inking edges on all three sides. Hot-stamped graduations. Thumbscrew locks triangle securely at desired angle. 0.12 inches thick, light blue, optically clear acrylic. Detailed instructions included.

Manufacturer: National Cellular Brand: Alvin Model: 306E

High-quality, solid aluminum scales. Printed calibrations on a durable, ultra-smooth surface that resists stains and abrasions. Color-coded furrows. 6 inches scale with standard engineer graduations of 10, 20, 30, 40, 50, and 60 parts per inch.

Manufacturer: National Cellular Brand: Alvin Model: FT390-4

Made of molded polystyrene 0.10 inches thick with double-beveled inking edges and double-beveled center cutout finger lifts. The fluorescent orange color reflects light along the drawing edge. Supplied in poly bag with hanging hole.

Manufacturer: National Cellular Brand: Alvin Model: 130F-6 Color: Fluorescent Orange

Will not discolor or warp with age and handling. The machined finish and hand-polished edges of the F Series (fluorescent) meets or exceeds government specifications. The F Series is extremely popular because the refracted light has an illuminating effect on the drawing by accentuating the triangle’s edge. All models feature a double-taper cutout center for quick, easy lifting from any angle. Supplied in poly bag with hanging hole.

Manufacturer: National Cellular Brand: Alvin Model: 740PM

Professional-quality metric scales made from high-impact plastic with white, non-reflecting, matte faces and tapered edges. Hot-stamped graduations and color-coded furrows. Supplied in hard plastic case. 1:20, 1:25, 1:50, 1:75, 1:100, 1:125

Manufacturer: National Cellular Brand: Alvin Model: FT450-6

Made of molded polystyrene 0.10 inches thick with double-beveled inking edges and double-beveled center cutout finger lifts. The fluorescent orange color reflects light along the drawing edge. Supplied in poly bag with hanging hole.

Manufacturer: National Cellular Brand: Alvin Model: 130C-18 Color: Clear

Will not discolor or warp with age and handling. The machined finish and hand-polished edges of the C Series (clear) meets or exceeds government specifications. All models feature a double-taper cutout center for quick, easy lifting from any angle. Supplied in poly bag with hanging hole.

Manufacturer: National Cellular Brand: Alvin Model: S1450-4

Economical drafting tool features professional quality, molded 0.08 inches polystyrene, and built-in finger lifts to make handling easier. Supplied in poly bag with hanging hole.

Manufacturer: National Cellular Brand: Alvin Model: SK360-14

These triangles are made of molded 0.10 inches thick polystyrene and feature a transparent non-glare smoke tint for easy visibility. Edges are double beveled with handy fingerlifts for quick placement and removal. Supplied in poly bag with hanging hole.