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$61.99
CBRIGHT Woodworking Square Hole Drill Bit Set 3pcs HSS Mortising Chisel Hole Saw Mortiser Woodworker Drill Bit Set 5/16inch,3/8inch,1/2 inch
★★★★★
$61.99
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1
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About this item
- Product Material: HSS; Hardness: HRC 48~50,long service life, the drill sleeve has a U-shaped design to facilitate the discharge of wood chips and improve the drilling efficiency.
- Holder diameter: 19mm(appr. 0.75inch).The size of the clamping drill sleeve of the square tenoning machine needs to be greater than 19mm (3/4 inch)
- Square Hole diameter: 8mm(5/16inch)&9.5mm(3/8inch)&12.7 mm(1/2 inch) ; Drilling core total length: 200mm(appr 7.88inch )
- Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc. It is not suitable for processing metal, glass, plastic, concrete, gypsum board etc.
- Note: -- It need to be used with square hole drilling machines (square tenon machines). We strongly do not recommend using hand drills or ordinary drill stands (non-square tenoning machines) to match this drill bit to make square holes.
Product details
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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