Nanch Precision Screwdriver Guide: Geonworks vs Swagkeys

After more than five years of reliable service, I finally retired my Xiaomi Wiha screwdriver—featuring a short 28 mm neck structure—to the drawer, upgrading my main tool to the Nanch precision screwdriver with its 45 mm long-neck design. This change was prompted by a disaster during a custom keyboard build where a short bit scratched the aluminum housing. After comparing configurations from Swagkeys and Geonworks, I opted for the Geonworks set, which includes the H1.3 hex bit. Though it cost 6,000 KRW more, it was a flawless upgrade that completely eliminated scratch stress while covering the necessary keyboard dimensions.

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Why I Initially Chose the Xiaomi Wiha Set as a Beginner Precision Screwdriver

When maintaining PCs and small electronics at home, I needed a reliable precision screwdriver set that was easy to grab and use. In 2021, I selected Xiaomi’s offering for its exceptional build quality and value. It’s a compact screwdriver and bit set created in collaboration with Wiha, an 80-year-old German hand tool specialist. I fell in love with Wiha’s signature high-quality bit materials and the sliding aluminum case design. Thanks to its solid finish, it served as a dependable main tool for everyday DIY tasks.

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Comprehensive Guide to Precision Screwdriver Bit Sizes and Uses

Every time I looked inside the set, unfamiliar bits like Y-type or Torx caught my eye, and I always wondered what they were for. Later, I realized that the special bits included in the Xiaomi set are dedicated sizes used for tearing down iPhones, MacBooks, and Nintendo Switches. Since I rarely needed to open Apple devices or game consoles, those bits essentially became decorative.

Phillips (PH) & Slotted (SL): The Basics of Everyday DIY

Ranging densely from PH000 to PH2 and SL1.5 to SL4.0, these are the most frequently used general-purpose sizes, handling everything from tightening eyeglasses screws to assembling PCs and taking apart common home appliances.

Hex: The Core of Custom Keyboard Building

Supporting sizes from H1.3 to H3.0, hex bits are essential for securing custom keyboard housings and adjusting set screws on knobs for devices like the DOIO controller. Notably, the presence of the H1.3 bit serves as the benchmark for determining a screwdriver’s practicality in keyboard work.

Torx: PC Components and Precision Electronics

Spanning widely from T2 to T15, Torx bits are frequently used for disassembling hard drives, laptop bottom panels, and securing various PC parts or small electronics.

Pentalobe & Tri-point (Y-type): Mobile Devices and Consoles

P2 (0.8) and P5 (1.2) are Apple-exclusive bits used for the bottom of iPhones and MacBook bottom cases, respectively. Y-type bits, ranging from Y0.6 to Y2.5, are mainly active when taking apart Nintendo Switch Joy-Cons or internal smartphone motherboard shields. You rarely need them for custom keyboards.

Other Special Specs: W-type, U-type, Triangle

W1.5 is used to remove internal standoff screws in iPhones. U2.6 occasionally shows up on tamper-resistant screws in multi-tap power strips or hair dryers. The 2.3 triangle bit comes in handy primarily for opening battery covers on children’s toys.

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The Aluminum Housing Scratch Disaster and the Need for Long-Neck Bits

My peaceful tool life hit a crisis once I got into custom keyboard building. The Xiaomi bits are only 28mm long, which inevitably caused problems when assembling aluminum barebones with deeply recessed screw holes. Driving the screws in deep caused the screwdriver’s chuck area to scrape against the housing finish.

Seeing scratches on an expensive barebone made me decide to replace my tools immediately. The lack of bit sizes tailored to specific parts also kept breaking my workflow. Later, after seeing others at a keyboard meetup using Nanch screwdrivers with a 45 mm long-neck structure, I decided to purchase one myself.

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Comparing Bit Configurations: Swagkeys vs. Geonworks Nanch Screwdrivers

Even with the same case and body, Nanch screwdriver bit configurations vary wildly depending on the vendor. Both Geonworks and Swagkeys—major players in the domestic custom keyboard market—sell their own Nanch sets. Both options adopt 45 mm long-neck bits, perfectly fulfilling the goal of preventing housing scratches. However, their bit configurations presented a crucial difference. I compared the two lineups based on my specific needs: keyboard building and light electronic teardowns.

Swagkeys (28,000 KRW)

Focused heavily on Apple-centric pentalobe and security Torx bits. Features duplicate H1.5 bit listings while omitting the H1.3 bit.

Geonworks (34,000 KRW)

Comes standard with the H1.3 hex bit required for knob fastening. Features finely segmented Slotted (SL) sizes ranging from 1.5 to 4.0.

![image://gearwhat.com/wp-content/uploads/2026/08/body-6-2.png)

While at it, I organized all the bit configurations not just for Geonworks and Swagkeys, but also for the standard Nanch configuration and my former Xiaomi Wiha screwdriver. Surely, someone out there needs this reference!

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The Practical Value of the Geonworks Set Beyond the 6,000 KRW Price Gap

Looking at price alone, Swagkeys is cheaper, but my final choice was the Geonworks Nanch screwdriver. Since I don’t use Apple devices, pentalobe bits are useless to me. On the other hand, the H1.3 bit is an absolute requirement for assembling custom keyboard knob set screws. Lacking the right bit means wasting shipping fees and time hunting down a separate wrench. Even if it costs 6,000 KRW more, choosing the Geonworks set packed with the exact configuration needed for immediate keyboard builds is the right move.

The real weapon of the Nanch screwdriver is the extension shaft mechanism hidden in the handle. By gently pushing and sliding the chuck area at the front of the handle, a thin internal metal shaft extends outward. Locking it in this position significantly lengthens the screwdriver head. Thanks to this long-neck structure, the anxiety-inducing stress of potentially scratching my barebone vanished entirely.

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Tool Setup Suited for Hobby Depth and a Two-Track Storage Strategy

The newly acquired Geonworks Nanch screwdriver has claimed its spot as my main tool in plain sight on my workbench. With housing scratch worries gone, I can now fully focus on the keyboard assembly process itself.

I placed my old Xiaomi set into a drawer as an emergency backup. Since both products are compatible with the 4mm/C4 standard, if I ever need to tear down a Nintendo Switch or small appliance later on, I plan to simply snap those special bits into the Nanch handle. The comfort of holding a tool that precisely matches your working environment offers value far beyond the cost of upgrading.

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Bit Type	Nanch Standard	Geonworks	Swagkeys	Xiaomi
Slotted	SL1.5	O	O	O	O
	SL2.0	O	O	O
	SL2.5		O
	SL3.0		O		O
	SL4.0	O	O	O
Tri-point	Y0.6	O			O
	Y1.0				O
	Y2.5	O
Hex	H1.3		O
	H1.5	O	O	O (x2)	O
	H2.0	O	O	O	O
	H2.5	O	O	O
	H3.0	O	O	O
Phillips	PH000	O	O	O	O
	PH00	O	O	O	O
	PH0	O	O	O	O
	PH1	O	O	O	O
	PH2	O	O	O
Pentalobe	P2(0.8)	O		O	O
	P5(1.2)	O		O	O
Torx	T2	O	O	O	O
	T3	O	O	O	O
	T4	O	O	O	O
	T5	O	O	O (H)	O
	T6	O (H)	O	O (H)
	T8	O (H)	O	O (H)
	T9				O (H)
	T10	O (H)	O	O (H)	O (H)
	T15		O	O (H)
W-type	W1.5				O
U-type	U2.6				O
Triangle	2.3				O
Total	23 Pcs	23 Pcs	23 Pcs	24 Pcs

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