BowLift | Woyuosn VioletShield Quad-Edge Drill Set
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Free Shipping
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14-Day Return Policy
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50% OFF
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One Bit, Any Surface — Blaze Through Jobs with Tungsten Power
Bore through steel at dawn, then glide through porcelain by noon—the same tungsten-steel bit crushes stone, concrete, metal, wood & glass in record time.
Quad-Edge Saw-Tooth Point
A solid tungsten-steel core capped by four scalpel-sharp faces self-centers in an instant, biting clean to curb walk and burrs on brutal materials.
Violet Titanium Shield
The bold hue isn’t paint—Ti-Al-N armour fuses to tungsten steel, shrugging off heat to deliver up to 3× the life of bare HSS.
Rapid Chip Clearance
Oversized twin-helix flutes carve wide airways, flinging debris clear so the tungsten edge stays cool and razor-keen.
¼″ Hex Quick-Lock Shank
Clicks into impact drivers, cordless drills or presses for slip-free, full-torque delivery.
Five Core Diameters
6 / 8 / 10 / 10L / 12 mm cover pilot holes through heavy-duty anchors—see the full size chart below.
| Bit Ø | Overall Length | Cutting Flute |
|---|---|---|
| 6 mm (¼") | 60 mm / 2.36" | 35 mm / 1.38" |
| 8 mm (5/16") | 100 mm / 3.94" | 60 mm / 2.36" |
| 10 mm (⅜") | 75 mm / 2.95" | 45 mm / 1.77" |
| 10 mm Long | 115 mm / 4.52" | 80 mm / 3.14" |
| 12 mm (½") | 120 mm / 4.72" | 80 mm / 3.14" |
FAQ
Do I need coolant when drilling glass or ceramic?
Yes—steady water flow preserves tungsten steel edges and prevents cracks.
Can these bits handle hammer action?
They’re engineered for rotary work; light tapping on masonry is acceptable.
Are the tips resharpenable?
The tungsten-steel edge can be touched up with a diamond wheel, though replacing is often faster and cost-effective.
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Returns to Canada
All returns must be sent to our warehouse in Canada:
Warehouse Dock 51400 Parkhurst Square #1
Brampton, ON L6T 5H5
Canada
Please note: We do NOT offer free returns for this product
