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Set of four chrome-vanadium steel drill bit extensions with magnetic 1/4-inch hex shanks in four lengths

Buhobha 4PCS Drill Bit Extension Set 1/4" Hex Shank Magnetic Bit Holder 2" 4" 6" 12" Cr-V Steel

SKU CH-440N-0XHAH

Four Cr-V steel magnetic bit holders in 2", 4", 6" and 12" lengths with 1/4" hex shanks for impact drivers

  • Corded or cordlessSolder fume extractor, false
  • Chuck sizeSolder fume extractor
  • Variable speedAir powered, false
  • Core bit cap concreteSolder fume extractor
  • Number of items12 pack
  • Sold asDrill extension bit holder, Solder fume extractor
  • Four lengths cover shallow and deep fastening tasks
  • Chrome-vanadium steel resists wear under high torque
  • Dual-lock magnetic collar stops bits from wobbling
  • Standard 1/4" hex shank fits most drivers
  • Quick-change design speeds up bit swaps in tight spots

Extension Set Overview

This Buhobha set supplies four magnetic bit holders with 1/4-inch hex shanks in 2, 4, 6 and 12-inch lengths. The chrome vanadium steel construction handles high torque from impact drivers and standard drills. A one-piece design transfers force efficiently while the double-lock collar secures bits firmly during use.

Ideal Users and Limits

The kit suits mechanics, electricians and DIYers who regularly drive fasteners in deep cavities or behind obstacles. The magnetic collar and quick-release sleeve speed up bit changes on the job. Buyers needing non-magnetic holders, SDS-plus shanks or lengths beyond 12 inches should look elsewhere.

Capacity and Reach

Four extensions cover most overhead, cabinet and automotive clearance challenges without stacking adapters. The 12-inch rod reaches deep engine bays while the 2-inch stubby fits tight corners. Cr-V steel resists rounding under heavy impact loads, though extremely high-torque industrial applications may demand specialised tooling.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 85% of the 2,412 comparable items (median $81.99).

Specifications

Product
Brand nameBuhobha
Model nameDrill extension bit holder
Product typeDrill extension bit holder
Performance
Variable speedAir powered, false
Processor
Core bit cap concreteSolder fume extractor
Power
Corded or cordlessSolder fume extractor, false
Size & build
Chuck sizeSolder fume extractor
In the box
Number of items12 pack
Includes batteriesNo

Questions about this item

What driver or drill chuck do I need to fit the 1/4" hex shank on these extensions?

Any drill, impact driver, or screwdriver with a standard 1/4" hex chuck will accept the shank directly.

Will the magnetic collar hold bits securely when I use the 12" extension with an impact driver?

The double-lock magnetic collar is designed to grip bits firmly under high torque, reducing wobble even on the longest rod.

How can I verify the quick-release mechanism is engaging properly after I insert a bit?

Pull the collar back, insert the bit until it clicks, release the collar, then tug the bit — it should not come free.

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