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4028MH Holey XZN Bit Socket | ½”Drive Tamper-Proof Triple Square
4028MH16-Holey XZN Bit Socket- 1/2″Drive
- Holey XZN Bit Socket – 1/2″ Drive
- Douille XZN avec trou central – 1/2″
- Vaso XZN perforado – 1/2″
- XZN-Stecknuss mit Loch – 1/2″ Antrieb
- Nasadka XZN z otworem – 1/2″
- مقبس XZN مثقوب – 1/2 بوصة
- ซ็อกเก็ต XZN แบบมีรู – ขนาด 1/2″
- Soquete XZN com furo – 1/2″
- Bussola XZN forata – 1/2″
- XZN-dopsleutel met gat – 1/2″
- XZN-головка с отверстием – 1/2″
- 穴あきXZNビットソケット – 1/2″
- 홀리 XZN 비트 소켓 – 1/2″
- 中空XZN套筒 – 1/2″
- 中空XZN套筒 – 1/2″
- Lyukas XZN bit dugókulcs – 1/2″
- Đầu tuýp XZN có lỗ – 1/2″
- Delikli XZN lokma – 1/2″
- Up to HRC 60º Bit Driver Made by W/S2 Steel Material
- Built for Precision: Essential Accessories for Every Technician’s Work
Holey XZN Bit Socket (Model 4028MH) is a mission-critical ½” drive specialty tool designed for tamper-resistant 12-point internal fasteners. Manufactured by Hans Tools, the Holey XZN Bit Socket addresses the specific challenges of European vehicle security standards. The “Holey” (security/bored) design is required for fasteners that incorporate a protruding safety pin in the center of the 12-point socket.
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(Tamper-resistant triple square bit with center hole)- For Audi A4 Oil Release Bolt
4028MH | Length (mm) |  g |  pcs |
|---|---|---|---|
| 16 | 60 | 142 | 10 |
| 18 | 60 | 148 | 10 |
Feature
Tamper-Proof Hole Architecture & Two-Piece Material Matrix
The 4028MH Structural Profile is optimized to handle high torque extraction loops without compromising fastener security pins:
- Holey Security XZN Drive Profile (MH Suffix): The core driving bit features an exact 12-point internal spline geometric profile equipped with a central bore hole. This cavity clears the integrated safety alignment pins found inside tamper-proof high-torque fasteners, enabling the bit to seat fully and flatly against the internal drive walls.
- Premium Two-Piece Pressed Assembly: Engineered to handle punishing manual loads. The security bit is machined from high-hardness S2 tool steel to resist corner rounding and splitting. It is factory hydraulic-pressed under extreme pressure into an independent, drop-forged Chrome Vanadium (Cr-V) steel hand socket base.
- Signature Factory Dual Finish (Mirror + Satin): The Chrome Vanadium socket base features a split-surface protection layer:
- Mirror Polished Main Body: Provides a smooth, non-porous finish that stops oils and garage fluids from staining the steel, making it incredibly simple to wipe completely clean.
- Texturized Satin Matte Band: Formed around the base collar to give the operator high tactile friction and non-slip finger-grip traction when spinning fasteners down by hand.
- Friction Ball-Detent Alignment Pockets: Outfitted with four internal detent grooves inside the 1/2″ drive hub to lock firmly onto standard manual hand ratchets, sliding t-bars, and breaker bars via a traditional spring ball system.
