ITEM: 23/4 OAL, Caliper Centerline Gage Attachment SPI. MANUFACTURER: SPI. BRAND: SPI. MANUFACTURER PART: Z9010. 23/4 OAL, Caliper Centerline Gage Attachment 1 Piece, 0.156 Slot Width, For Use with 12 Dial & Vernier Calipers (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Dimensional Measuring Tools. Calipers & Caliper Gages. Caliper Accessories. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: SPIDimensional Measuring ToolsCalipers & Caliper GagesCalipersCaliper Accessories.