5 1/16'' (128.6 mm)

Measure center-to-center between the two screw holes using a ruler or calipers. A measurement of 128 mm (5 1/16 inches) confirms the 128 mm spec; 127 mm (5 inches exactly) is the closest neighbor and is often listed for the same physical drilling on North American hardware. Because the two sizes differ by only 1 mm, calipers give a more reliable reading than a standard tape measure. Ordering the wrong center distance means the mounting screws will not align with the existing holes.

Drawer fronts in the 18 to 28 inch range are cited for European frameless cabinet construction where 128 mm is the default for medium-to-wide drawers. At that span, bar pulls, T-pulls, and flat strap styles read proportionately against wide flat fronts. Narrower drawers typically call for smaller drill centers, while fronts wider than 28 inches may suit the next step up at 6 inches (152.4 mm).

Both designations appear in catalog listings: 5 1/16 inch and 128 mm are the same spec, while 5 inch refers to the adjacent 127 mm size. North American brands that adopted European cabinet construction list 128 mm as a default offering, so searches for '128 mm pulls' are more likely to surface the correct products than searching '5 inch' alone. Confirming the millimeter figure in the product spec — not just the inch rounding — is the safest way to match existing European frameless cabinet holes.

The 6 inch (152.4 mm) drill center covers wider drawer fronts beyond the 18–28 inch range where 128 mm is the standard fit. A pull at 128 mm on a very wide front can look visually understated, while 152.4 mm provides a longer grip and a bolder horizontal line. If the existing holes are already bored at 128 mm, switching to 152.4 mm requires new drilling; there is no overlap between the two spacings.