Drafting Compasses


Draw or scribe circles and transfer measurements. These compasses have a bow spring to hold the legs in place.
9" maximum circle diameter compass is die cast zinc for rust resistance. Scribe guide is for edge marking.
Max. Circle Dia. | Leg Lg. | Marker Type | Adjustment Method | Includes | Each | |
Zinc | ||||||
---|---|---|---|---|---|---|
9" | 4 1/8" | Pencil | Knurled Nut | Scribe Guide | 00000000 | 00000 |
Nickel-Plated Brass | ||||||
10 1/2" | 4 5/8" | Lead, Scribing Point | Knurled Center Wheel | __ | 000000 | 00000 |
14" | 4 5/8" | Lead | Knurled Center Wheel | __ | 000000 | 00000 |
18" | 4 5/8" | Lead | Knurled Center Wheel | __ | 000000 | 00000 |
Replacement Lead (4/Pkg.) | 0000000 | Pkg. | 00000 |
Scribing Compasses

Accurately mark and measure. Also known as dividers, these compasses ensure accuracy when marking and measuring. Steel compasses have a strong, flexible bow spring that holds the legs in place.
Max. Circle Dia. | Leg Lg. | Marker Type | Adjustment Method | Each | ||
Steel | ||||||
---|---|---|---|---|---|---|
3" | 3" | Scribing Point | Knurled Nut | Steel | 0000000 | 000000 |
4" | 4" | Scribing Point | Knurled Nut | Steel | 0000000 | 00000 |
6" | 6" | Scribing Point | Knurled Nut | Steel | 0000000 | 00000 |
8" | 8" | Scribing Point | Knurled Nut | Steel | 0000000 | 00000 |
10" | 10" | Scribing Point | Knurled Nut | Steel | 0000000 | 00000 |
12" | 12" | Scribing Point | Knurled Nut | Steel | 0000000 | 00000 |
Large-Circle Scribing Compasses

A wing joint opens wide for marking and transferring large circles, arcs, and measurements. Also known as dividers, these compasses ensure accuracy when marking and measuring. They have a spring that holds the legs in place.
Starrett Scribing Compasses

Ensure accuracy when marking and measuring. Also known as dividers, these compasses have a strong, flexible bow spring that holds the legs in place.
Edge Scribing Compasses

Mark and transfer distances from the outer edge of an object. An offset divider leg with adjustable point sits on the surface of an object while the outside-caliper style leg reaches around the edge.
Max. Circle Dia. | Leg Lg. | Marker Type | Each | |
Steel | ||||
---|---|---|---|---|
10 5/8" | 6" | Scribing Point | 0000000 | 000000 |
Large-Diameter Layout Compasses

Compasses have spring-tension joints that stay rigid to draw large circles up to 100" diameter. They fold for easy storage.
Compass Point-Holding Clamps for Rulers

Turn your ruler into a compass by adding these point-holding clamps. They're also known as trammels.
For Ruler Thick. | Marker Type | Includes | Each | |
Aluminum | ||||
---|---|---|---|---|
1"-1 1/4" | Lead | One Lead Point, One Rotating Blade | 00000000 | 000000 |
Compass Point-Holding Clamps for Beams

Clamp these point-holding clamps, also known as trammels, onto a beam to create a compass.
For Beam Thick. | Marker Type | Includes | Each | |
Painted Steel | ||||
---|---|---|---|---|
5/8"-1 1/2" | Pen, Pencil, Scribing Point, Soapstone Crayon | Two 6" long steel points | 0000000 | 000000 |
Wide Range Tape Measure Compasses

Extend the blade to draw circles up to 144" diameter. The blade locks in place.
Circle Dia. | |||||||
---|---|---|---|---|---|---|---|
Max. | Min. | Marker Type | Top Graduation Marks (Numeric Increments) | Bottom Graduation Marks (Numeric Increments) | Includes | Each | |
Inch/Metric | |||||||
Steel | |||||||
144" | 7" | Lead | 32nds (1") | Millimeters (1 cm) | Steel Pin | 0000000 | 000000 |
Expandable Beam Compasses

Draw circles up to 24" or add Extension Beams for Expandable Beam Compass to create even larger circles.
Starrett Expandable Beam Compasses

Transfer measurements and draw large, precise circles. These compasses have expandable point-holding clamps, also known as trammels, that securely grip the flat top of the beam. Adjust the scribing points with the knurled grip on the clamps. One clamp has a screw for making fine adjustments to ensure accuracy when marking and measuring.
Max. Circle Dia. | Marker Type | Adjustment Method | Beam Lg. | Includes | Manufacturer Model No. | Each | |
Chrome-Plated Steel | |||||||
---|---|---|---|---|---|---|---|
18" | Scribing Point | Screw | 10 1/2" | Beam with Flattened Top, Caliper Legs | C251A | 0000000 | 0000000 |
26" | Scribing Point | Screw | 14 1/2" | Beam with Flattened Top, Caliper Legs | C251B | 0000000 | 000000 |
36" | Scribing Point | Screw | 20" | Beam with Flattened Top, Caliper Legs | C251C | 0000000 | 000000 |