Today’s post is dedicated to proven tool kits for precision work. These are screwdrivers with bits that can be used to disassemble, for example, a laptop, quickly and without damaging the fasteners. In the selection there will be only sets with bits tested on a hardness tester. No Chinese «plasticine»!

The factory hardness tester will not let you lie. The bit hardness will be indicated in HRC. And where I measured (on an X-ray fluorescent and spark analyzer), I will also indicate the chemical composition of the bit steel.

Consider proven options for precision work kits on the AliExpress platform from sellers with a large number of orders.

Xiaomi Mijia Wiha 24 in 1

The collection opens with the Xiaomi Wiha 24 in 1 set in a stylish metal case. He is depicted in the title photo of the topic. Looks great, will be a good gift for a home craftsman.

Aluminum case with a sliding mechanism, dimensions 167x67x17 mm. A set of 24 bits + a screwdriver in a case weighs 253 grams.

Measured bit hardness wiha 58 HRC. Bit material: high-carbon tool steel with protective coating. Screwdriver set in coated aluminium.

There is a choice in this lot: Xiaomi Wiha 24 in 1 set only, set + magnetic mat, electric screwdriver bit set, electric screwdriver bit set + magnetic mat.


The set is also from the «ecosystem» of Xiaomi. I myself use such a set, it is always at hand on the table.

The set includes two solid metal screwdrivers and 40 bits in a plastic case. Bits 4 mm for precision work and 6.35 mm for a power screwdriver (there are 16 of them).

Screwdriver sizes: power 182 mm long, handle 27 mm, for precision work — 122 mm, diameter 10 mm. Bit holders are magnetic, bits are set clearly and without play.

Bit hardness 60 HRC. I also checked the material — we have high-carbon tool steel.


A high-quality completed set of JIMI JM-GNT30 30 in 1 (also «under the wing» of Xiaomi). The set includes a screwdriver, stainless steel tweezers and long bits 28 pcs.

Landing bit hexagon 4 mm. Bit length 45 mm. A typical disassembly kit for small electronics, a complete set of small torx (stars), cross PH 5 types, running hexagons and a triangle for rare screws, for example, in extension cords.

Bits with a hardness of 62 HRC (surface hardening of HDTV), the material is carbon tool steel, like domestic 40X.

The case is made of soft-touch plastic, the two halves are held together by magnets.

There is a more compact set (15.5×3.5×3.5 cm) JIMI GNT-18, bits of the same type and quality, but there are fewer of them. Screwdriver and tweezers are the same.

ATuMan RS1 24 in 1

Next, a set from ATuMan (included in Xiaomi Youpin) with an interesting T-shaped screwdriver. Screwdriver modular and with a ratchet. Set in a plastic case, 24 bits are also placed there. Bits (1/4″) are marked by type with colored inserts. The bit hold is magnetic.

Due to the modular design, you can assemble a suitable tool for the situation in just a couple of seconds.

Case dimensions 160 x 92.5 x 36 mm, weight 400 grams.

Bit hardness 60 HRC, material — tool steel alloyed with molybdenum.

In this lot there are two models ATuMan RS1 and RS2 (with a screw driver and sockets) to choose from.

DIYWORK 60 in 1

The selection is completed by a budget option from DIYWORK: a screwdriver and a set of 60 bits for precision work. I also have one, it captivates with a large set of bits, among which there are rare and very low prices.

Complete bits (48 pcs.) with a 4 mm fit and a length of 28 mm, among them there are exotic U 2.6-3 and S0-S2 squares. The set also includes socket heads (8 pcs.), a flexible extension and a 6.35 mm adapter.

Case size: 205x100x25 mm. Weight of the set 335 g.

Checking the real hardness of the bits showed 58 HRC (hardening). Material: ordinary carbon steel, something like domestic 45 steel, with protective coating.

I hope that the selection of screwdrivers for precision work was useful and you will choose the option that suits your taste and budget.

Happy shopping! Don’t forget to apply AliExpress coupons and discounts.


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