Kolvoii CA-TK-016 67-Piece Bolt and Screw Extractor Kit

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Product guide

Kolvoii CA-TK-016 67-Piece Bolt and Screw Extractor Kit

Piece: The Kolvoii CA-TK-016 bolt and screw extractor kit combines several extractor styles with left-hand drill bits for work on stripped or broken fasteners. Its broad assortment may suit home and automotive repairs, though customer feedback reports mixed cutting performance, grip, and durability.

At a glance

Listing describes a mix of deep and shallow bolt extractors, multi-spline extractors, left-hand cobalt drill bits, and spiral screw extractors.
The listed kit also includes a knockout pin and 3/8-inch hex adapter, with tools arranged in a portable case.
Left-hand drill bits have a stated 135-degree tip, and the listing describes two extractor depths.

Price

$49.99Save 50%

Reference price: ~~$99.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

The assortment combines several extractor types and left-hand drill bits in one kit, potentially useful when the fastener type varies.
The stated 3/8-inch square drive and hex heads are described as compatible with hand, air, or power tools.
A dedicated case is described for storing and transporting the tools.

Cons

Customer feedback is mixed on cutting performance, with reports ranging from effective cutting to poor cutting even with cutting oil.
Durability feedback is mixed, including reports of extractors breaking easily.

Technical specifications

12 specifications

Identity
Brand	Kolvoii
Model	CA-TK-016

Dimensions and weight
Dimensions listed	10.04 x 1.97 x 13.8 inches
Weight listed	9 pounds

Materials and construction
Material listed	Cr-Mo steel, High Speed Steel (HSS)
Finish	Uncoated
Cutting angle	135 degrees
Flute type	Spiral
Number of flutes	2

Set configuration and compatibility
Piece count	67
Extractor depths	2.5" and 1.07"
Drive and head compatibility	3/8" square drive and hex heads

What to know before buying

The listing describes a 67-piece kit but does not provide individual sizes for the extractor and drill-bit assortment. Confirm the sizes you need before buying. The listed dimensions and weight refer to the kit, not individual tools.

What’s in the box

Included

Screw extractors

Who is it for?

A good fit for

Home or automotive repair users who want several extractor styles and left-hand drill bits in one organized kit.
Buyers who need a range of extractor approaches for damaged, stripped, or rounded fasteners.

Less suited to

Buyers who need confirmed sizes for each included tool before purchase.
Anyone who needs dependable cutting or durability performance based on customer feedback alone.

Kolvoii CA-TK-016 67-Piece Bolt and Screw Extractor Kit · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 224 ratings

5 stars70%70%
4 stars14%14%
3 stars4%4%
2 stars3%3%
1 star9%9%

Customer feedback describes the kit as a useful starter assortment that can save time and help with difficult removals, but reports are mixed on cutting, spline grip, durability, and ease of use. That matters for a 67-piece set intended to cover several fastener types: its range may be convenient, but the feedback does not establish consistent performance across the assortment. Aggregate ratings lean positive overall, while a smaller low-star share signals that experiences are not uniform.

Positive themes

Some customers describe the kit as a useful starter set and say it helps in difficult extraction jobs.

Negative themes

Some customers report that the tools cut poorly, even with cutting oil, or that spline extractors failed to grip.
Some customers report breakage.

Mixed feedback

Customers differ on durability and ease of use, and overall value feedback is mixed.

Frequently asked questions

What tools does the Kolvoii CA-TK-016 kit list?

The listing describes 26 deep and shallow bolt extractors, 13 multi-spline extractors, 18 left-hand cobalt drill bits, eight spiral screw extractors, a knockout pin, and a 3/8-inch hex adapter.

What materials are listed?

The stated materials are Cr-Mo steel and High Speed Steel (HSS).

What is the listed drive compatibility?

The listing specifies 3/8-inch square drive and hex heads, and says they are compatible with hand, air, or power tools.

What do customers report about performance?

Feedback is mixed. Some customers say the kit works well and helps with difficult removals, while others report poor cutting, weak grip from spline extractors, or breakage.