Not correction: coarse is absent, and over-applied filler or heavy ridges belong to the correction pair or the sanders line at scale.
Not corner cutting: its edges are deliberately dead — a corner that needs grit worked into the angle wants the 4-sided blocks' coated edges.
Not flatness: foam follows; planes are the 45395's business.
Not rooms: taped joints at wall scale are pole-sander work.
And not a current catalog recommendation: for new specification the line's live fine/medium is the 45350 — this page serves the block already in a pocket, honestly.
the 2-3/4" × 4" footprint disappears into a cupped palm — face work under the flat of the hand, detail passes driven from the fingertips. Pressure: light; foam cuts where it compresses, and a small block concentrates an unwary hand fast. Faces: confirm fine vs medium by touch at pickup — the rungs are adjacent, and a stage run on the wrong face is rework. Edges: remember which surfaces do not cut and use them — the dead edge against finished planes is this block's signature move. Dust: damp method for occupied rooms; N95-class respirator floor for dry compound sanding, per the abrasives line doc's evidence base (NIOSH 99-113); pre-1978 painted surfaces are EPA RRP territory before any sanding (EPA RRP).
Asked at the counter
BUYER QUESTIONS ANSWERED BEFORE THE CART, NOT AFTER THE RETURN
Do its edges sand?
No — two sanding sides means the two big faces only. The bare edges are the feature: a non-scratching margin against adjacent finished planes, which the 4-sided generation gave up.
What numbers are "fine" and "medium"?
None are claimed . The line's one anchor — the 09083's official "150 Medium" — sets the medium class at 150; fine is relational: shallower, pre-prime. No number prints here until a claim exists.
What is the abrasive?
Unstated — foam construction is corroborated, but the mineral claim in this line belongs to the 4-sided pair alone.
Can I use it wet?
Yes, by claim: "Use wet or dry for flat or contour sanding. Rinse to clean." Section 2a is the method at this block's grain.
Can it handle heavy filler?
No — no coarse rung. Open correction on the medium/coarse side of the pocket system (the documented live block is the 45360) and meet this block at the shared medium rung.
Should I still use it?
A block in hand is claims-backed, washable, and fully competent at its three jobs above. Specify the live 45350 for the future; work this one honestly for as long as rinsing keeps reviving it.
Is it discontinued?
Yes — the store title says so, and this guide leads with it. No claim declares a replacement ; the line's live fine/medium block is the 4-sided 45350, positioned as where the family went, not as an official successor.
