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Four cobalt hole saws in blue yellow red with arbors and hex key on multicolor background

GEINXURN GTNHS04 4PCS 22mm 29mm 35mm M42 Cobalt Hole Saw Set pneumatic accessory

SKU CH-C983-FRNRV MPN GTNHS04

Four-piece M42 cobalt hole-saw set with 22 mm, 29 mm and 35 mm cutters, pilot bits and hex key for thin metal, wood and drywall

  • Fit and compatibilityRechargeable Drill
  • Commercial or home useIndustrial
  • Size or dimensions3.35 in × 2.91 in × 0.1 in
  • Main materialHigh Speed Cobalt
  • Sold asIndustrial, 4, Saw Blade, 1
  • Color and finishMulticolor
  • Four cobalt hole saws cut clean holes in metal, wood and drywall
  • M42 bi-metal teeth stay sharp through repeated heavy-duty use
  • ¼-inch hex shank locks into any drill or impact driver without wobble
  • Chip-ejection slots clear swarf fast to prevent binding and heat build-up
  • Compact 3.35 × 2.91 × .1 in kit fits in a toolbox for quick job-site access

4-piece M42 Cobalt Hole Saw Kit

This set contains three cobalt bi-metal hole saws sized 22 mm, 29 mm and 35 mm for cutting thin metal, wood, PVC and drywall. Three matching arbors with pilot bits and a hex key are included for immediate use. The 1/4-inch hex shank fits standard drill chucks and impact drivers. It is aimed at electricians, HVAC installers and DIYers who need clean, fast holes in sheet materials.

Check drill chuck and material thickness

Verify that your drill or impact driver accepts a 1/4-inch hex shank before ordering. The saws are designed for thin-wall applications; they are not suited for thick structural steel or deep cutting beyond the saw depth. Ensure the workpiece is clamped securely to prevent the pilot bit from wandering. The compact 3.35 x 2.91 x .1 inch package stores easily in a tool bag.

Upgrade from single-size carbon steel saws

Replacing a single carbon steel hole saw with this M42 cobalt trio adds wear resistance and heat tolerance for repetitive cuts in stainless sheet, conduit boxes and ceiling tiles. The step-design pilot bit and chip-removal slots reduce binding and improve roundness compared with basic bi-metal blades. The jump is worth it when you regularly cut multiple diameters in abrasive materials and want longer tooth life.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $32.99
Pricier than about 55% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameGEINXURN
Model nameGTNHS04
Part numberGTNHS04
Color and finishMulticolor
Size & build
Size or dimensions3.35 in × 2.91 in × 0.1 in
Main materialHigh Speed Cobalt
Compatibility
Fit and compatibilityRechargeable Drill
In the box
Number of items4, Saw Blade, Industrial
More details
Commercial or home useIndustrial

Questions about this item

What does the 4-piece set include and is anything else needed to start drilling?

The set contains three M42 cobalt bi-metal hole saws at 22 mm, 29 mm and 35 mm, three arbors with pilot bits measuring 34 mm each, and one hex key for assembly. The 1/4-inch hex shank fits standard drills and impact drivers, so no extra parts are required.

Which hole-saw diameter should I pick for a 1-1/8 inch recessed-light cutout?

Choose the 29 mm saw, which is marked 1-1/8 inch and coloured yellow in the kit.

What does the 1/4-inch hex shank mean when the saw is mounted in a cordless drill?

The 1/4-inch quick-change hex shank locks into any standard drill chuck or impact driver, reducing vibration and keeping the cut straight while allowing fast bit swaps on the job site.

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