The Proxxon Spiral Scroll Saw Blades (No. 28747) are a 12-pack of plain-end (pinless) spiral blades for scroll saws. Unlike conventional scroll saw blades that only cut on the forward stroke in one direction, spiral blades have teeth running all the way around the blade — allowing cuts in any direction without rotating the workpiece. This is a significant advantage when working with large or awkward workpieces that are difficult to maneuver. The plain-end (no pin) format allows the blade to be threaded through a 1.5mm (1/16") pilot hole for interior cutouts — essential for fretwork, inlay work, and any cut that starts inside the workpiece boundary. Key Features All-direction cutting — spiral teeth all around the blade; cut in any direction without rotating the workpiece Plain-end (no pins) — threads through a 1.5mm pilot hole for interior cutouts and fretwork Large workpiece advantage — eliminates the need to rotate heavy or awkward pieces during cutting 12-pack — generous supply for extended scroll work Applications Interior cutouts and fretwork (blade threaded through pilot hole) Large workpiece scroll cutting without rotation Omnidirectional pattern cutting in wood Inlay and marquetry work Specifications Part Number: No. 28747 Blade type: Spiral (all-direction cutting) Blade end: Plain-end (no pins) Pilot hole required: 1.5mm (1/16") minimum Quantity: 12 per pack Scroll Saw Blade Types — Which to Choose Spiral Plain-End / No. 28747 (this blade) — all-direction cutting; for large workpieces and interior fretwork cutouts Pin-End 10 TPI (No. 28741) — coarse; fastest cuts in thicker wood and soft materials Pin-End 18 TPI (No. 28743) — medium; versatile all-rounder for wood and plastics Pin-End 25 TPI (No. 28745) — fine; for NF metals, GRP, Plexiglass, and thin materials Works Well With Proxxon Delta Sander OZI/E (No. 38520) — for sanding tight inside curves after scroll cutting Proxxon Belt Sander BS/E (No. 38536) — for smoothing scroll-cut edges Returns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. For warranty claims please call 1-877-776-9966. See our full return and refund policy. California Residents Prop 65 Information WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
