STUFEN SPIRALB KIT 25 PIECE

Product Overview

Introducing the STUFEN SPIRALB KIT 25 PIECE, a high-quality step twist drill set designed for precision and efficiency.

Key Features

• Step twist drill set, 25 pieces.
• Manufactured according to DIN 338 standards.
• Composed of durable HSSG-M2 material.
• Cross-ground design for enhanced performance.
• Innovative step drill tip geometry starting from 3 mm diameter.
• 3-sided shank for sizes from 4 mm, ensuring a secure grip.
• Compact rose plastic box for organized storage.

Benefits

These drills combine the advantages of step and twist drills, allowing for:

• Precise spot drilling without slipping, eliminating the need for pre-drilling.
• Efficient drilling of larger diameters in a single operation.
• Rapid drilling progress due to effective material penetration.
• Safe use on smooth, rounded, and uneven surfaces.
• Extended tool life and energy savings thanks to step technology.
• Creation of accurate, circular drill holes.
• Effective for drilling out rivets and stud bolts.
• Optimal chip removal, allowing precise drilling in hardwood.

Performance

The 3-edge shank design prevents slippage in the drill chuck, ensuring maximum power transmission.

Specifications

Contents include one step twist drill bit for each size from 1.0 mm to 13.0 mm (0.5 mm increments).

Material Compatibility

Ideal for drilling various materials such as:

• Sheet metal and thin-walled materials
• Alloyed and unalloyed steels
• Cast iron and malleable cast iron
• General structural steels
• Low-alloyed copper, brass, and aluminum
• Tool steels
• Plastics, acrylic glass, and screen printing plates
• Hard and soft wood