Does this work with shielded/foil cat6a please?

Yes, it does. This crimping tool (VDV226-110) supports CAT3, CAT5e, CAT6/6A cable types. Actually, it will depend on the type of RJ45 connectors. For shielded/foiled cables you may be required a special type of connectors (for example: Pass-Thru™ Modular Data Plugs, RJ45-CAT6A, Shielded (STP) VDV826-705). In my practice, I even used this for crimping CAT6e (STP) cables with no issues. Regards

Whats the difference between this and the £10 cheaper 2016 version? (asin b00f6k5sy2)? only handle and number seem different

The new version is for the MUCH simpler to use pass through type RJ45 plugs and cuts off the excess cable whilst crimping, the model you mention is as far as I am aware only for the traditional type of RJ45 connectors that dont have the pass through functionality, so whilst it would still work fine crimping them you would need to cut off the excess with a sharp blade afterwards

can this unit be used on flat RJ45 cables

Having not used flat cables I couldnt say for sure, although with some trial and error I cant see why the cutting blade wouldnt be suitable for preparing them As for the crimping and cut off part of it, that only related to the plug, what type of cable you insert into the plug shouldnt matter as long as it meets the Cat5/6 specifications After that all the tool does is push the IDC blades down, cuts off the excess wire that passes through and compresses the cable grip in the plug, so it shouldnt really matter what type of cable you have used

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Klein Tools VDV226-110 Ratcheting Modular Data Cable Crimper/Wire Stripper/Wire Cutter for RJ11/RJ12 Standard, RJ45 Pass-Thru Connectors

Product ID: 54331790

Details

Brand
KLEIN TOOLS
Colour
Yellow / Black
Handle material
Stainless
Item weight
14.4 Ounces
Product dimensions
15.5L x 6.1W

🔧Ratchet ensures full crimps

⏱️Pass-Thru tech speeds installs

⚙️3-in-1 crimp, strip & cut

ƒ370

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Description

🔌 Crimp smarter, not harder — the pro’s secret weapon for flawless network installs!

ALL IN ONE PRECISION - Cut, strip, and crimp RJ11/RJ12 & RJ45 connectors with one sleek tool.
ERGONOMIC POWER GRIP - Comfort-driven stainless steel handles reduce hand fatigue during long installs.
PASS THRU EFFICIENCY - Pass-Thru RJ45 plugs slash prep time—get flawless wiring faster and avoid costly rework.
PRO LEVEL RELIABILITY - Ratchet mechanism guarantees complete connector termination every time—no guesswork.
UNIVERSAL COMPATIBILITY - Supports 4, 6, and 8 position modular connectors for versatile voice & data applications.

The Klein Tools VDV226-110 is a premium ratcheting modular crimper designed for professional-grade RJ11, RJ12, and RJ45 Pass-Thru connectors. Combining wire cutting, stripping, and crimping in one ergonomic tool, it streamlines voice and data cable installations with precision flush trimming and a full-cycle ratchet mechanism. Trusted by pros for its durability and efficiency, it supports 4, 6, and 8 position connectors and significantly reduces wiring errors with an on-tool wiring guide.

Specifications

ASIN	B076MGPQZQ
Best Sellers Rank	11,064 in DIY & Tools ( See Top 100 in DIY & Tools ) 24 in Crimpers
Brand	KLEIN TOOLS
Colour	Yellow / Black
Country of Origin	Taiwan
Customer Reviews	4.7 4.7 out of 5 stars (11,331)
Cutting Width	15.5 Centimeters
Global Trade Identification Number	00092644690945
Grip Type	Ergonomic
Handle Material	Stainless Steel
Handle Type	ergonomic
Included Components	Crimper
Item Dimensions L x W	15.5L x 6.1W centimetres
Item Length	6.09 Inches
Item Type Name	Klein Tools VDV226-110 Ratcheting Modular Data Cable Crimper / Wire Stripper / Wire Cutter for RJ11/RJ12 Standard, RJ45 Pass-Thru Connectors
Item Weight	14.4 Ounces
Manufacturer	Klein Tools
Manufacturer Warranty Description	Normal life of the product.
Model Number	VDV226-110
Number of Items	1
Part Number	VDV226-110
Size	Pack of 1
UPC	092644690945
Unit Count	1.0 count
Usage	Data and voice cable installation and maintenance, networking, telecommunications

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