The Tolsen step drill bit set includes 3 hardened HSS drill bits with a titanium coating, designed for progressive and precise drilling in workshop and general repair tasks. The included sizes cover multiple diameters: 0.16 to 0.47 in (4 to 12 mm), 0.16 to 0.79 in (4 to 20 mm) and 0.16 to 1.26 in (4 to 32 mm), with 2 mm steps.

Practical for enlarging holes or drilling different diameters with fewer tool changes, this Tolsen step drill bit set is a versatile choice for users looking for reliable titanium step drill bits. The included iron box helps keep the bits organized, protected and easy to transport.

Features:

3-piece step drill bit set

Hardened HSS high-speed steel

Titanium coating

Includes 4-12 mm, 4-20 mm and 4-32 mm sizes

2 mm step increments

Metal storage box included

Ideal for progressive drilling and hole enlargement

3 Pieces