Drill America
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Drill America - CTH4250 4-1/4" Carbide Tipped Hole Cutter with 1" Depth of Cut
★★★★★4.6
$890.99
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$35.99
WojBear 1 PCS New Square Electrical Box Hole Cutter, 40Cr Alloy Steel Reinforced Welding Design, SDS Plus Suitable for Brick, Concrete, Cement & Stone (17.0×8.6×4.5cm)
★★★★★
$35.99
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About this item
- Precise Dimension Calibration: 17.0×8.6×4.5cm exact sizing, fits 86-type/regular junction boxes. Zero hole deviation, no secondary trimming, boosts construction efficiency.
- 40Cr Alloy Steel Material: Forged 40Cr alloy steel (tensile strength ≥980MPa, 40% stronger than 45# steel). Superior wear/impact resistance, 2x longer service life.
- Reinforced Welding Design: High-frequency precision welding + T-shaped interlocking structure. Tight welds (no false welding), enhanced anti-fracture/deformation, stable high-intensity operation.
- SDS Plus High-Strength Concrete Hole Punch: Compatible with SDS Plus 4-flute hammer drills. Strong torque, penetrates hard substrates (concrete/cement walls) easily. Stable, labor-saving, professional drilling.
- Multi-Substrate Compatibility: Suitable for brick, concrete, cement, stone. Ideal for home/commercial renovation, infrastructure projects (junction box notching, wall drilling, pipeline installation).
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Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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