BowLift | Woyuosn VioletShield Quad-Edge Drill Set
GST included.
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.
Estimated delivery times:
- Order cut-off time: 5:00 pm Sydney time (AEST/AEDT)
- Processing time: 1–3 business days (Monday to Friday)
- Transit time: 7–14 business days
- Total estimated delivery: 8–17 business days
Free standard shipping on every order within Australia.
Couranthe is operated from London, United Kingdom. Orders are fulfilled and dispatched through international logistics partners for delivery across Australia.
Return window:
You have 30 days from delivery to request a change-of-mind return.
Condition:
Items must be unused, in the condition you received them, and in their original packaging with all parts and accessories.
Faulty or incorrect items:
If an item arrives faulty, damaged or not as described, we cover return postage and offer a repair, replacement or refund.
Your rights:
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
Email: support@couranthe.com
Contact form: Contact page
Customer service hours (AEST)
Monday to Friday: 9:00 am – 5:30 pm
Saturday and Sunday: 10:00 am – 3:00 pm
We aim to reply to every enquiry within 24 hours.