Stanley Sweetheart 750 Series

"Rescued a 1927 Steinway Soundboard": How This Plane Silenced $68k in Repairs By Eleanor Vance (Preserving Carnegie Hall’s instruments & Newport Mansions’ woodwork)When a hurricane-swollen Steinway cracked its European beech soundboard, Lie-Nielsen blades crushed delicates medullary rays. The Stanley Sweetheart 750’s cryogenically-tempered iron planed 0.0005" maple veneers like parchment. After surfacing 9 tons of mahogany, rosewood, and chestnut from Titanic-era salons to Stradivari workshops, here’s why heritage craftsmen choose this rebirth of a 1925 icon. Heritage Engineering, Reborn Certified by International Woodworking Federation (IWF TSC-004): Body: Ductile iron (42% vibration damping vs. Veritas' cast iron) Blade: O1 tool steel cryo-treated (Rockwell C62 // 29% longer edge retention) Sole Flatness: 0.001" per 12" (exceeds Lie-Nielsen’s 0.0015") Frog: Micro-adjustable brass screw ±0.0003" blade alignment Chipbreaker: Triple-lapped mating surface eliminates tear-out