...It's a friendly battle.
My Case pen knife in yellow CV showed up today. It's my first Case. I already own the Buck 309 in 420HC. At heart, I'm a carbon steel guy, and I like compact, light knives, so the Case 32087 was difficult to resist. My intent is to carry both knives.
Cosmetics
Buck 309: Basic black plastic with nicely polished bolsters and back springs. Handsome handle shape and badge.
Case 109: Nicely mirror polished all around, handsome serpentine shape, and friendly yellow handles. Brass liners are pretty.
Winner: Case 109
Fit and Finish
Buck 309: a very strong, tightly made knife. The backsprings have no gaps, plastic/metal transitions are smooth; bolsters and liners are one solid piece of steel. When opened, the blade spine blends smoothly with the springs. There were a few blemishes like rough liner edges, and a proud center pin.
Case 109: All edges are nicely rounded, surfaces are flush, and pins are flush. When opened, the blade and springs have an awkward transition. There is a gap between the backspring and one liner. I can see light through it. The oddest thing is the heel of both blades has been coarsely ground, leaving burrs that had to be filed off.
Winner: Buck 309
Walk and talk
Buck 309: Nice smooth deployment and good snap. No blade play.
Case 109: The master blade is gritty to open. Snap on both blades is passable, but weak. A little play on the clip blade.
Winner: Buck 309
Blades:
Buck 309:Hollow ground 420HC with good edge holding. Blades are beefy and unpolished. Grind was uneven on the pen blade, and both blades were not sharp enough to push cut paper.
Case 109: Chrome Vanadium, full flat grind (actually very subtle hollow grind), which I am excited about. Evenly ground, sharp enough to cut paper, but could be better. After a little sharpening, I can tell the CV has good hardness. The master blade is around 3/8 inch longer than the 309's.
Winner: Case 109
Ergonomics
Buck 309: At 3" long and 1.2oz, the 309 is an easy rider in any pocket. The handle is just long enough for a good grip if I need to bear down.
Case 109: The Case is 3/8" longer, and 0.2 oz heavier (1.4oz, not 1.7 as listed). I sense it in the pocket more, but it's still an easy carry. The longer handle is actually thinner than the Buck's, but feels good.
Winner: Tie
About the blade layout, notice how the Buck has blades rooted on opposite sides. On the Case pen, both blades are rooted on the same side, with the extra liner running full length on the opposite side. This layout seems counter-intuitive, requiring more bend in the blades to fit together.
Conclusion
Based on first impressions, I'd say the Buck wins overall, but I recall it took me some time to warm up to the Buck. I'm not going to rule on the Case until I've had it a while. The Buck was $10 cheaper, making it an excellent value. I'm really looking forward to watching the CV age with time. I thought the Case would be a bit of pocket jewelry, but it's really a working knife at heart. I'm going to give it a little TLC and enjoy it.
My Case pen knife in yellow CV showed up today. It's my first Case. I already own the Buck 309 in 420HC. At heart, I'm a carbon steel guy, and I like compact, light knives, so the Case 32087 was difficult to resist. My intent is to carry both knives.

Cosmetics
Buck 309: Basic black plastic with nicely polished bolsters and back springs. Handsome handle shape and badge.
Case 109: Nicely mirror polished all around, handsome serpentine shape, and friendly yellow handles. Brass liners are pretty.
Winner: Case 109

Fit and Finish
Buck 309: a very strong, tightly made knife. The backsprings have no gaps, plastic/metal transitions are smooth; bolsters and liners are one solid piece of steel. When opened, the blade spine blends smoothly with the springs. There were a few blemishes like rough liner edges, and a proud center pin.
Case 109: All edges are nicely rounded, surfaces are flush, and pins are flush. When opened, the blade and springs have an awkward transition. There is a gap between the backspring and one liner. I can see light through it. The oddest thing is the heel of both blades has been coarsely ground, leaving burrs that had to be filed off.
Winner: Buck 309

Walk and talk
Buck 309: Nice smooth deployment and good snap. No blade play.
Case 109: The master blade is gritty to open. Snap on both blades is passable, but weak. A little play on the clip blade.
Winner: Buck 309

Blades:
Buck 309:Hollow ground 420HC with good edge holding. Blades are beefy and unpolished. Grind was uneven on the pen blade, and both blades were not sharp enough to push cut paper.
Case 109: Chrome Vanadium, full flat grind (actually very subtle hollow grind), which I am excited about. Evenly ground, sharp enough to cut paper, but could be better. After a little sharpening, I can tell the CV has good hardness. The master blade is around 3/8 inch longer than the 309's.
Winner: Case 109

Ergonomics
Buck 309: At 3" long and 1.2oz, the 309 is an easy rider in any pocket. The handle is just long enough for a good grip if I need to bear down.
Case 109: The Case is 3/8" longer, and 0.2 oz heavier (1.4oz, not 1.7 as listed). I sense it in the pocket more, but it's still an easy carry. The longer handle is actually thinner than the Buck's, but feels good.
Winner: Tie

About the blade layout, notice how the Buck has blades rooted on opposite sides. On the Case pen, both blades are rooted on the same side, with the extra liner running full length on the opposite side. This layout seems counter-intuitive, requiring more bend in the blades to fit together.
Conclusion
Based on first impressions, I'd say the Buck wins overall, but I recall it took me some time to warm up to the Buck. I'm not going to rule on the Case until I've had it a while. The Buck was $10 cheaper, making it an excellent value. I'm really looking forward to watching the CV age with time. I thought the Case would be a bit of pocket jewelry, but it's really a working knife at heart. I'm going to give it a little TLC and enjoy it.
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