So are any of these bits jis? Because I don’t see jis stamped

I’m going to say no, just because of how they’re labeled PH1 PH2 PH3. PH meaning Phillips. Vessel usually labels their JIS drivers +1 +2 +3 or P1 P2 P3. P meaning Plus. Though I’m surprised Vessel made a set with Phillips bits, not JIS bits. Having said all that, this is a decent set that I use regularly. I have only experienced cam-out either when using cheap screws, or operator error.

Does anyone know of the grooves on these line up properly with the ball detent on American style impact drivers?

The ball detent lines up with about the ball on the bit. It locks securely into an impact driver but has a couple millimeters of back and forth movement inside the collar. In a Milwaukee M12 Surge Impact Driver, just the head of the bit sticks past the collar. The movement is just slightly more then my long Milwaukee and DeWalt bits and extenders.

Are the cross points JIS?

Short answer - NO. The cross points are marked PH1 / 2 / 3 and PZ1 / 2 / 3. The PH is for Phillips and the PZ is for Pozidrive. I haven't tried the PZ on my JIS fasteners but based on the description they seem similar to my JIS Vessel screwdrivers. From the internet. "A Pozidriv has ribs between each of the four arms of the cross. This increases the grip between the bit and the fastener. A Phillips bit fits in a Pozidriv screw head, but it will most likely cam out before the fastener is fully tightened. ... A Pozidriv bit does not fit in a Phillips screw head"

Q: Vessel, do you offer metric hex 2.5 mmbits? thank you

Yes and we will prepare Hex 2.5mm tip bit in near future! By the way, Hex 3/32" is 2.3mm so it is a sort of 2.5mm.

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(US Model) VESSEL IMPACT BALL Torsion Bit 31 PC. Set in SLIDE CASE

Product ID: 289760422

Details

Brand
VESSEL
Finish Type
Unfinished
Item Length
41.69 Inches
Material
Metal
Number of Pieces
31

🧲Magnetized tips for secure fastening

⚙️62HRC ultra-hard VoHA steel

🛠️30 precision torsion bits

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Description

🛠️ Elevate your toolkit with precision-engineered power – don’t get left behind!

MAGNETIZED TIPS - Ensures screws stay firmly in place, reducing drops and speeding up your workflow.
ERGONOMIC SLIDE CASE - Sleek, compact slide case keeps your bits organized and easily accessible on the go.
UNMATCHED DURABILITY - Crafted from VoHA steel with a peak hardness of 62HRC for long-lasting performance under impact.
MADE IN JAPAN EXCELLENCE - Precision-engineered by VESSEL, a trusted brand known for superior quality and reliability.
COMPREHENSIVE 30 1 BIT VARIETY - Includes a wide range of Phillips, Slotted, Square, Torx, Pozidriv, and Hex bits to tackle any industrial task.

The VESSEL IMPACT BALL™ Torsion Bit 30+1 PC Set features 30 high-performance torsion bits plus a durable bit holder, all housed in a sleek slide case. Made in Japan from ultra-hard VoHA steel with a 62HRC rating, these magnetized bits deliver exceptional wear resistance and secure fastening for professional-grade industrial use.

Specifications

ASIN	B08WHYFQYL
Best Sellers Rank	#67,325 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #241 in Screwdriver Bit Sets
Bit Set Composition	Bit Set
Bit Tip Configuration	Magnetic Tip
Brand Name	VESSEL
Customer Reviews	4.7 4.7 out of 5 stars (508)
Drive Bit Application	industrial
Drive Bit Shank Style	Hex
Drive End Style	Hex Shank
Drive System	Hex
Finish Types	Unfinished
Included Components	Manufactuered Brand Product
Item Length	41.69 Inches
Item Type Name	Tools
Manufacturer	VESSEL
Manufacturer Part Number	426115
Manufacturer Warranty Description	2 yr warranty on material and workmanship
Material Type	Metal
Model Number	IB31P02U
Number of Pieces	31
Set Name	31pc Bit Set
UPC	840921141310
Unit Count	1.0 Count

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₩104352

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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