Alvin 366S Speed-Bow Compass Set *DISCONTINUED*

The Alvin Speed-Bow Compass Set comes with a complete collection of drawing equipment for all drafting applications. It includes a 6 ½-inch speed-bow compass that features double knee joints for accurate drawing of circles with up to 12-inch diameter. This set also provides a 4 ¾-inch pencil bow with hoop spring tension design and a six-inch friction divider with self-centering gearhead design.

This compass set is equipped with a 6-inch beam bar extension and slide coupling to allow larger circle diameter. It has a spare part tube that contains replacement lead, needle points, and T-bolt. With a pen adapter, it is versatile and allows use of different kinds of pen. The Alvin Speed-Bow Compass Set is packed in a sturdy, see-through plastic case.

• Includes 6 ½-inch speed-bow compass
• With 4 ¾-inch pencil bow with hoop spring tension design   
• Self-centering 6-inch friction divider
• Comes with 6-inch beam bar extension
• Spare parts tube and and pen adapter included
• Packed in a hard, transparent plastic case

• Alvin Speed-Bow Compass Set

Includes:

• 6 ½-inch Speed-Bow Compass
• 4 ¾-inch Pencil Bow
• 6-inch Friction Divider
• 6-inch Beam Bar Extension
• Pen Adapter
• Spare Parts Tube 
• Plastic Case