diff --git a/src/components/three/XRControllerMeasure.tsx b/src/components/three/XRControllerMeasure.tsx
index 63b9af9..72b542b 100644
--- a/src/components/three/XRControllerMeasure.tsx
+++ b/src/components/three/XRControllerMeasure.tsx
@@ -149,18 +149,20 @@ export function XRControllerMeasure() {
           snappedPoint = bestHoleCenter;
           snapKind = 'hole';
         } else if (snapEnabled) {
-          // Try detecting a circular edge (hole) at hit
-          const circle = detectCircularEdgeAtPoint(hit.object, hit.point, fakeCam, canvasSize, 60);
+          // Try detecting a circular edge (hole) at hit — radius mais generoso
+          const circle = detectCircularEdgeAtPoint(hit.object, hit.point, fakeCam, canvasSize, 90);
           if (circle) {
             snappedPoint = circle.center;
             snapKind = 'hole';
             hoverDetected = { kind: 'hole', value: circle.diameterMM, position: circle.center };
           } else {
-            const snap = resolveSnap(hit.object, hit.point, fakeCam, canvasSize, 14, 18);
+            // Snap mais "magnético": raios maiores de busca em pixels
+            //  vértice: 32px (antes 14), aresta: 48px (antes 18)
+            const snap = resolveSnap(hit.object, hit.point, fakeCam, canvasSize, 32, 48);
             snappedPoint = snap.point;
             snapKind = snap.type;
             if (snap.type === 'edge') {
-              const seg = findNearestEdgeSegment(hit.object, hit.point, fakeCam, canvasSize, 18);
+              const seg = findNearestEdgeSegment(hit.object, hit.point, fakeCam, canvasSize, 48);
               if (seg) {
                 const lenMM = seg.a.distanceTo(seg.b) * 1000;
                 hoverDetected = { kind: 'edge', value: lenMM, position: seg.midpoint, endpoints: { a: seg.a, b: seg.b } };
@@ -172,7 +174,9 @@ export function XRControllerMeasure() {
           snapKind = 'surface';
         }
       }
-      // Cache for non-heavy frames so the laser + trigger still have a target
+      // Cache for non-heavy frames so the laser + trigger still have a target.
+      // Sticky: se conseguimos um snap "forte" (vertex/edge/hole), preservamos
+      // ele entre frames leves para evitar cintilação.
       cachedSnappedPoint.current = snappedPoint ? snappedPoint.clone() : null;
       cachedSnapKind.current = snapKind;
     } else {