The stroke belongs to the parent and the scrapers line doc
drawn toward you, steep angle, downforce over the edge, second hand on the 10540's knob — and this page adds only what two blades change. Match edge to phase, not to mood: rough grind under full two-handed pressure is for build the wall is shedding; smooth grind under moderated pressure is for the surface you keep. Read edges in raking light — a bright reflected line along the apex means dull, a one-sided glint means rolled. Scan for proud fasteners before each fresh edge's first full-pressure pass; a popped nail is the most common first-hour death of new steel, and this parent carries a Hammer Head® inset precisely because scraping finds them. And the boundary that governs the whole use case: heavy multi-coat failure is where pre-1978 lead paint lives, and every card in this pack inherits the RRP/lead section of the scrapers line doc — containment, wet methods, certified-firm obligations on paid work (EPA — Lead RRP Program).
Asked at the counter
BUYER QUESTIONS ANSWERED BEFORE THE CART, NOT AFTER THE RETURN
Is this just two 11130s?
In steel, yes — identical blade, same official page, same claims. In purchase logic, it is the job-scale option: eight edges, four of them the rough grind that filing cannot restore .
Why does the 11130's title mention a 10280 and this one doesn't?
Listing artifact. Identical blades fit identical tools, so a title-only mention on one SKU can't be a product difference — and the 10280 fit itself is unverified and unasserted on both pages .
Will these fit my 10520?
No claim supports it and this store won't invent it — the 2-edge and 4-edge systems differ in grind and mounting .
Should I open both blades at once?
No. Run blade one's full rotation cycle; blade two stays sealed as the reserve. An opened spare is an unguarded edge; a sealed one is inventory.
How many jobs is eight edges?
Phase-dependent, honestly: hogging consumes rough edges fast and the file can't replace them; smooth edges last seasons under the 11200. A one-wall repair may retire nothing; a whole-house prep can spend both rough pairs.
When do I buy the file instead of more blades?
Immediately, if you don't own it — the 11200 makes every smooth edge in this pack renewable, leaving damage and rough-phase burn as the only real consumption.
