Professional Drawing Compass Pictured: Model 604 Master Bow Compass ALVIN drawing compasses span a massive range of sizes, applications, and uses. Our traditional beginner and intermediate level compasses are sure to find themselves right at home in any geometry or art class. Our professional-level compasses are the perfect precision tool that any engineer, draftsman, or professor needs to add to their collection of drawing instruments. These metal drafting compasses can make precision circles from 1/8" up to 22" in diameter with added beam bar. Model 201 Model 203 Model 504 Model 604 Model 608K Model 494 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.4 out of 5 stars 244 4.1 out of 5 stars 7 3.9 out of 5 stars 54 3.9 out of 5 stars 54 4.1 out of 5 stars 60 3.9 out of 5 stars 31 Price $15.27$15.27 $23.27$23.27 $14.97$14.97 $19.27$19.27 $33.90$33.90 $8.68$8.68 Needle Replacement ✓ ✓ ✓ ✓ ✓ ✓ Beam Bar no data no data no data no data no data no data Ruling Pen no data no data no data no data no data no data Pencil Adapter no data ✓ no data no data no data no data Model 975K Model 205V Model 505V Model 795B Model 302 VJ Model 505 Buying Options Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.0 out of 5 stars 164 4.0 out of 5 stars 164 4.0 out of 5 stars 164 4.1 out of 5 stars 60 4.0 out of 5 stars 164 4.1 out of 5 stars 60 Price — no data $18.97$18.97 $20.77$20.77 $37.47$37.47 $20.97$20.97 $19.95$19.95 Needle Replacement ✓ ✓ ✓ ✓ ✓ ✓ Beam Bar ✓ ✓ ✓ no data ✓ no data Ruling Pen no data no data ✓ no data no data ✓ Pencil Adapter ✓ ✓ no data no data no data no data Model 560 Model 660 Model 958 Model 961X Model 961B Model 929JS Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 89 4.5 out of 5 stars 89 4.1 out of 5 stars 36 4.3 out of 5 stars 165 4.3 out of 5 stars 165 4.1 out of 5 stars 60 Price $9.57$9.57 $9.99$9.99 $13.75$13.75 $35.97$35.97 $29.97$29.97 $44.47$44.47 Needle Replacement no data ✓ no data ✓ ✓ ✓ Beam Bar no data no data no data no data no data ✓ Ruling Pen no data no data ✓ ✓ ✓ ✓ Pencil Adapter Adapter no data no data no data no data no data ✓ ALVIN compasses are made with German precision engineering that allows for the precise and consistent drawing of radii. Made from quality materials such as zinc alloy, ALVIN drafting compasses are sure to last the test of time. The more advanced models, such as the 205V and the 975K, have adjustable knee joints for rapid adjustment and even greater ability to draft with accuracy. Kits with pencil adaptors allow for the attachment of a drafting pencil, pen, or marker. Add one of ALVIN's model 958 spring blade pencils to your kit with a pencil adaptor, or buy the model 505V kit to take your drafting abilities to another level. This pen is finely honed to create precise lines with India Ink. ALVIN compasses are made with German precision engineering that allows for the precise and consistent drawing of radii. Made from quality materials such as zinc alloy, ALVIN drafting compasses are sure to last the test of time. The more advanced models, such as the 205V and the 975K, have adjustable knee joints for rapid adjustment and even greater ability to draft with accuracy. Kits with pencil adaptors allow for the attachment of a drafting pencil, pen, or marker. Add one of ALVIN's model 958 spring blade pencils to your kit with a pencil adaptor, or buy the model 505V kit to take your drafting abilities to another level. This pen is finely honed to create precise lines with India Ink.