The Alvin Speed-Bow Introductory Compass is a heavy-duty drawing equipment with its cast zinc construction. It comes with black fiberglass crown and reinforcements for additional durability. It provides smooth-action rapid adjustment to ensure accurate drawings at all times. Equipped with double knee joints for parallel leg positioning, it is ideal for drawing large circles with ease and precision.
This 6 ½-inch speed-bow compass is designed to create circles with diameter up to 12 inches. But with the optional six-inch beam bar extension, it allows up to 25-inch diameter circles. This is to accommodate a wide array of drawing and drafting applications. For maximum functionality, it also offers an optional six-inch friction divider with self-centering gearhead design and adjustable and replaceable needle points.
The Alvin Speed-Bow Introductory Compass includes a replacement compass lead tube and a sturdy, transparent plastic case for convenient storage and easy transport. It is available in three different packages to suit various needs and preferences.
Configuration Options
The Alvin Speed-Bow Introductory Compass comes in three different packages. Please select your preference from the drop-down menu above.
305: Compass Only
Includes:
- Alvin Speed-Bow Introductory Compass
- Replacement Compass Lead Tube
- Transparent Plastic Case
305K: With Divider
Includes:
- Alvin Speed-Bow Introductory Compass
- 6-inch Gearhead Divider
- Replacement Compass Lead Tube
- Transparent Plastic Case
302VJ: With Beam Bar Extension
Includes:
- Alvin Speed-Bow Introductory Compass
- 6-inch Beam Bar Extension
- Replacement Compass Lead Tube
- Transparent Plastic Case