QISF 7Pcs 300mm Extra Long Twist Drill Bits Set (4-12mm)+ 9Pcs Woodworking Drill Bit Depth Stop Collars Ring Locator (3-16mm),for Wood Hole Cutter Drilling DIY Plastic
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QISF 7Pcs 300mm Extra Long Twist Drill Bits Set (4-12mm)+ 9Pcs Woodworking Drill Bit Depth Stop Collars Ring Locator (3-16mm),for Wood Hole Cutter Drilling DIY Plastic

3.7/5
Product ID: 125534947
Secure Transaction
12 interest-free installments with tabby

Details

  • Material
    High Carbon
  • Cutting diameter
    12 Millimetres
  • Finish type
    Steel
  • Shank type
    Hex
  • Brand
    QISF
🎯Precision depth control
📏300mm extra-long reach
⚙️High-carbon steel durability

Description

🔧 Drill deeper, drill smarter—own the precision edge!

  • BUILT TO LAST - Hardened high-carbon steel resists wear and breakage under pressure.
  • SECURE STABLE - Collars grip the bit diameter firmly without damaging the shaft for consistent performance.
  • EXTENDED REACH MASTERY - Extra-long 300mm drill bits for those hard-to-reach projects.
  • PRECISION DEPTH CONTROL - Stop collars ensure exact hole depth every time—no guesswork.
  • VERSATILE DIY ESSENTIAL - Perfect for wood, plastic, aluminum—your all-in-one drilling solution.

The QISF 7Pcs 300mm Extra Long Twist Drill Bits Set includes 7 high-carbon steel drill bits (4-12mm) and 9 adjustable depth stop collars (3-16mm) designed for precise, controlled drilling in wood, plastic, and soft metals. Engineered for durability and accuracy, this set empowers professionals and DIYers to achieve flawless hole depths with extended reach and secure bit stability.

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Specifications

ManufacturerQISF
Part NumberNECALON
Package Dimensions33 x 20 x 2 cm; 590 g
Item model numberNECALON
FinishSteel
MaterialHigh Carbon Steel
Number of Pieces16
Batteries included?No
Batteries Required?No
Item Weight590 g

Reviews

3.7

All from verified purchases

T**N

decent set for the price

if you need a super long thin drill bit then this is for you.be careful though as the thinnest one is pretty fragile.

D**M

Useless, can't drill even one hole.

Absolute rubbish. Not lasted even one hole. As you can see in the picture, I tried both 4 and 6mm. Both just broke as if they're made of some very soft metal. I wonder who are those people who give 5 stars. Surely they never tried to use this.

M**A

ok

perfect

T**M

Useful but treat them with care

Use the thinner drill bits carefully not to snap them. They are thin and will definitely break as I found out. Having said that they do work just fine, but I wouldn’t recommend using such a long thin drill bit in hard wood.

C**I

Great bit of kit .

The lengths are very much an advantage for me.

G**R

Ok but very, very flexible

Purchased these to do fome work to my log cabin office.I needed to drill through around 15cm of wood to run cables, etc.First impression upon opening them was that they are very cheap, the plastic wallet the come in was already starting to fall apart.Upon trying to use them I found they were not straight and any pressure I put upon them caused them to bend further..That said, they did the job well enough.. although I was only drilling through pine, anything harder and I don't think they would have managed..The drill bits are soft so that did allow me to straighten them slightly, but i don't really see that as a positive..Overall they did the job but I wouldn't buy them again...

D**N

We have a problem.

So initially they actually look pretty good and don't feel too bad either but that's where the story ends. I used the 4mm bit and I got half way through the job and it bent and twisted like a liquorice stick before snapping. Yep it snapped in the hole and the only way to remove it was with locking pliers. I know the thinner bits will need to work under immense pressure and stress but surely it should do better than 1/2 job? Incidentally I was drilling into a dry log without knots..

A**R

Great drill set.

Nothing to dislike.

Common Questions

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Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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Secure Transaction
12 interest-free installments with tabby

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Qisf 7pcs 300mm Extra Long Twist Drill Bits Set 4 | Desertcart UAE