









🔩 Drill Smarter, Not Harder — Master Mortises with Ease!
The ASDTOOL Square Hole Drill Bit Adapter set features a durable all-steel construction and includes four precision square hole drill bits ranging from 6.4mm to 12.7mm. Designed for quick installation on drill clips sized 38-55mm, it transforms compatible drill presses and hand drills into efficient mortising machines, perfect for woodworking and furniture making. Note: Not compatible with lithium battery drills or bench drills lacking round bore bearings.








| Material | Alloy Steel |
| Brand | ASDTOOL |
| Surface Recommendation | Wood |
| Number of Flutes | 2 |
| Net Quantity | 4.0 Count |
| Manufacturer | ASDTOOL |
| Number of Pieces | 4 |
| Number of Memory Sticks | 5 |
| Item Weight | 1 kg 80 g |
| Package Dimensions | 21.69 x 11.3 x 10.69 cm; 1.08 kg |
| Item part number | ZDNA12 |
| Included Components | 4pcs Square Hole Drill and adapter |
R**E
Drill bits
Fast shipping. Product is satisfying
A**E
Bolts were missing.
Bolts were missing and all products were out off box.
N**E
Square hole drill
Didn’t come with any information but figured it out
S**K
Tools
It was a gift to a wood worker and he liked them.
R**N
Easily turned my small drill press into a machine to make holes for tendons.
Easy to install and use
Trustpilot
1 month ago
1 week ago