Wanjorlay HSS Step Drill Bit - 4-42 mm 14 Sizes Round Shank Hole Cutting Tool Quick Working Steel

• Made of high-speed steel, and long lasting.
• Automatically deburr holes when drilling.
• Nitrogen treated to increase hardness and abrasion resistance.
• 14 sizes, 4-42 mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42 mm)
• Suitable for workpieces with a hardness below 25°. Widely used for cutting holes in a variety of materials such as steel, thin, aluminium alloys, insulation boards, PVC boards, etc.

Wanjorlay Product specifications: 4-42 (14 steps: 4-6-9-12-15-18-21-24-27-30-33-36-39-42mm) Product packaging: OPP bag Colour: gold. Product material: steel. Product handle: diameter 10 mm, round Product length: . 98 mm. Package Content: 1 x 4-42 mm HSS step cone drill. Only the above package content, other products are not included. Note: Due to the light and screen difference, the colour of the item in the photos may be slightly different. The allowed measurement error is +/- 1-3 cm.