Step Cone Drill Bit – 4-42Mm – 14 Sizes – High Speed Steel ROund Shank Hole Cutter Tool

$36.99

Recommended retail price $42.66. You save $5.67 (13%).

High speed steel construction for durability
Nitrogen treated surface increases hardness
Cuts diameters from four to forty-two millimetres
Automatically deburrs edges as you drill
Fits standard round shank power drills

In stock

Delivery & Returns

Free delivery on this item.
Sent directly from our Australian warehouse partners.
Usually dispatched within 1-3 business days.
Delivery after dispatch: usually 2-8 business days within Australia, 7-14 business days to New Zealand. Tracking is emailed when it ships.
Change-of-mind returns within 14 days on unopened eligible items (10% restocking fee; you pay return postage). Faulty or wrong items are always put right, free. Returns policy

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01POWER DRILLS & ACCESSORIES

Fourteen precise cuts in one tool

A single tool that replaces a drawer full of individual hole saws, this step cone bit offers a compact solution for precision drilling. Its conical profile allows the user to select any diameter within its range without swapping accessories.

Ideal for makers, mechanics and DIY enthusiasts working with thin iron, aluminium, PVC or wood, it delivers clean, deburred holes in a single pass.

Step Cone Drill Bit - 4-42Mm - 14 Sizes - High Speed Steel ROund Shank Hole Cutter Tool

02MATERIALS

Hardened high speed steel core

Crafted from high speed steel, the bit maintains its edge through repeated use on abrasive materials. A nitrogen treatment further enhances surface hardness and abrasion resistance, ensuring the teeth stay sharp longer than standard carbon steel alternatives.

FUNCTION

Automatic deburring during drilling

As the bit advances, its geometry automatically cleans the cut edge, removing burrs that typically require a separate file or reamer. This leaves a smooth, professional finish directly from the drill, saving time on post-drilling cleanup for both metal and composite boards.

COMPATIBILITY

Versatile material application

Designed for versatility, this round shank bit performs well on thin iron plates, aluminium alloys, insulation boards and PVC sheets up to four millimetres thick. It is equally effective in wood, making it a practical addition to any workshop toolkit.

AT A GLANCE

The key points

High speed steel construction for durability
Nitrogen treated surface increases hardness
Cuts diameters from four to forty-two millimetres
Automatically deburrs edges as you drill
Fits standard round shank power drills

About this product

Quality Material: High Speed Steel.Deburring Function: Automatically deburr holes when you drill.Surface Treatment: Nitrogen treated to increase hardness and abrasion resistance.Scope of Application: Thin iron plate, aluminum, insulation boards, 4mm thick PVC boards in wood.Step Type: 14 Sizes, 4-42mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42mm)Main Features:Treated by nitrogen to increase hardness and abrasion resistance.Automatically deburr holes when you drill.Made of high speed steel, durable and long lasting.14 Sizes, 4-42mm (4, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42mm)Widely used for cutting holes in a variety of materials like steel, wood, thin iron, aluminum alloy, insulation board, PVC sheet, ect.Package Contents:1 x 4-42mm HSS Steel Cone Drill Bit.