3M 33446, Cubitron II File Belt, 80+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033186, 10 belts per carton, 5 cartons per case 
Insize 6141-260, EXTENSION BASE, length 10.236″, 6928640303449
$52.19
Supplied with two screws.
Made of stainless steel.
Suitable for depth gages series 1147, 1148, 1243, 1247, 1248 and 1249
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