Michael Larsen
Senior Vice President and Chief Financial Officer at Illinois Tool Works
Thank you, Scott. And good morning, everyone. ITW delivered another solid quarter operationally and financially. Starting with organic growth of more than 5%. Foreign currency translation headwind and divestitures reduced revenue by 2% and 1% respectively. On the bottom-line, operating income grew 9% with incremental margins of 98%. Operating margin improved 150 basis-points to 24.2%, with enterprise initiatives and price-cost contributing 100 basis-points and 190 basis-points respectively. In addition to higher wages and benefit costs, year-over-year, we're funding our growth investments, including headcount in the areas that support our organic growth strategies and initiatives, and we still delivered 150 basis-points of margin improvement in the quarter. GAAP EPS grew 10% to $2.33, which included foreign currency translation headwind of $0.06 and our Q1 tax-rate was 22.6%. And as Scott said, it was encouraging to see our free cash flow performance return to normal levels. Overall for Q1, excellent operational execution across-the-board and strong financial performance, including record EPS.
Please turn to slide four. Starting with positive organic growth in all of our major geographies, including North-America, which represents about 55% of total revenues and grew 5%, and Europe was up 6%. Asia-Pacific grew 2% despite a 6% decline in China due to COVID related headwinds in Q1.
Moving on to segment results, starting with Automotive OEM and solid organic growth of 8%. North America was up 3% and Europe grew 16%. China was down 5% due to COVID related headwinds in Q1, and we're seeing the expected bounce-back here in Q2. In terms of automotive OEM margins, we are beginning to recover the price-cost margin impact that has diluted margins in this segment by about 450 basis-points over the last two years. As a result, we expect price-cost margin impact to turn positive starting in Q2, which combined with positive volume leverage and contributions from enterprise initiatives will lead to higher margins sequentially and year-over-year starting in Q2 and for the balance of the year.
Turning to slide five. Food equipment delivered another strong quarter with organic growth of 16% as North America led the way with organic growth of 21%. Institutional end-markets were up more than 50%, with particular strength in education and lodging. In addition, restaurants were up more than 30%. International revenue grew 9% with Europe up 11%, and Asia-Pacific was down 6% due to China. Strong progress on margins with Q1 operating margin of 26.7%, an increase of more than 400 basis-points year-over-year.
Test & Measurement and Electronics delivered organic growth of 6%, despite a double-digit slowdown in semiconductor related revenues, which represent about 20% of segment revenue. On the other hand, demand for our capital equipment remained strong as evidenced by Instron, for example, which was up 22%. Overall, Test and Measurement grew 12% organically, Electronics was down 4%.
Moving on to slide six. Welding delivered double-digit organic growth of 10% in Q1 on top of 13% in Q1 last year, as equipment grew 10% and consumables were up 11%. Industrial sales remained strong, with organic growth of 17%, while the commercial side was down 2%. North America grew 10% and international grew 12%, driven by strength in the oil and gas business, which was up 15%. Operating margin expanded 110 basis-points to 31.9%, a new record for the segment and the company. Organic growth in Polymers & Fluids was about flat against a difficult comparison, plus 13% last year. Automotive aftermarket was down 1%, Polymers grew 1%, Fluids was also up 1%. On a geographic basis, North America grew 1% and international declined 2%.
Turning to slide seven, organic revenue and construction was down 1% against a tough comparison of plus 21% last year. Residential construction was down 1% and commercial construction, which represents a little less than 20% of the business in North America was up 5%. Europe was down 9% and Australia, New Zealand was up 3%. Finally, specialty, organic revenue was down 5%, which included three percentage points of headwind from product-line simplification. On a geographic basis, North America was down 4% and international was down 6%.
Okay, let's move to slide eight for an update on our full-year 2023 guidance. And as you saw this morning, we raised GAAP EPS guidance by $0.05 to a new range of $9.45 to $9.85, which considers the lower projected tax-rate for the full-year in the range of 23.5% to 24%. Given the level of macroeconomic uncertainty going-forward, we're essentially holding our operational guidance and adjusted EPS to reflect the lower projected tax-rate. Our organic growth projection of 3% to 5% reflects current levels of demand with some risk adjustment for further slowing in certain end-markets. Combined, foreign currency translation impact at current rates and divestitures are projected to reduce revenue by 1%. Operating margin is projected to expand by more than 100 basis-points at the midpoint of our range, which includes approximately 100 basis-points from enterprise initiatives and positive price-cost margin impact.
Like I said, we're off to a solid start to the year with some positive momentum heading into Q2, and we remain well-positioned to continue to outperform in whatever economic conditions emerge through the balance of 2023.
With that, Karen, I'll turn it back to you.