HSS Hole Saw Set | 12-27 mm | 8 pcs (YT-43400)

The professional YT-43400 HSS trepanning drill set is designed for precise hole drilling in structural steel, sheet metal, profiles, and other metal components. These drills are widely used in metalworking, mechanical workshops, manufacturing plants, and steel structure assembly, where accuracy, machining speed, and reduced material loss are key.

Trepanning drilling technology allows for the removal of only the circumference of the material, not its entire volume, significantly reducing cutting resistance, shortening work time, and extending tool life. Constructed from high-speed steel (HSS), the drills provide high wear resistance and stable performance even with intensive use.

Features and functions:

Trepanning drills for steel processing – this set is designed for making precise holes in steel and other metals of similar hardness, perfect for drilling steel profiles, pipes, sheet metal, and structural components used in industry and construction.
Efficient drilling with less resistance – the trepanning design reduces material removal, resulting in lower machine load, faster operation, and lower energy consumption. It also allows for cleaner hole edges and greater accuracy.
High-quality HSS high-speed steel – drills made of HSS steel are characterized by good resistance to high operating temperatures, abrasion, and mechanical loads, and exhibit longer life and repeatable machining, even in continuous operation.
Weldon mounting – a mounting standard that ensures stable drill bit seating in the chuck and reliable torque transfer during operation.
Set of most frequently used diameters – the set includes the most popular drill bit sizes used in assembly and workshop work, allowing for a wide range of applications without the need to purchase additional tools.
2 pilots – Ensures effective drill centering, core ejection, and coolant delivery, contributing to work safety.
Drill diameters:

12 mm
15 mm
18 mm
21 mm
24 mm
27 mm
Technical specifications:

Type: Trepanning drill set
Material: HSS
Mounting: Weldon
Application: For steel
Number of elements: 8
Diameter range: 12-27 mm
Index
YT-43400
Barcode
5906083126451
Unit of measure
KPL
Volume
2.53
Weight 1 kg