Features
- Market leading 5mm step thickness
- Spiral flute design for fast, smooth drilling
- Size markings etched at each step for easy identification
- 118° split point angle for easy hole start and pilot accuracy
- Industrial grade Titanium Nitride (GoldMax) coating reduces heat buildup and burn-out
- Dual hardening process provides impact rating and up to 15× faster speed than traditional methods
- Heavy-duty non-slip hex shank for secure operation
- Compatible with standard 1/2" drill chucks and VersaDrive Rapid Lock adapters
- Optimized for use with impact wrenches and impact drivers
- Produces quality results on stainless steels and Inox (rotary application recommended)
- Excellent life and performance with rotary pistol drills or drill presses
- Suitable for stainless and harder materials when used at low RPM
- Use appropriate lubrication and correct RPM to achieve long tool life
Specifications
| Last Modified | 28/06/2025, 08:25:05 | 
| EAN Code | 5060674925608 | 
| Data Sheet | https://cdn.shopify.com/s/files/1/0340/0965/files/Step_Drill_Data_Sheet_11474f33-3b3b-4729-906a-fa9261f23c23.pdf?v=1674127417 | 
| Step Sizes | 12, 22, 30, 40 mm | 
| Maximum Step Thickness | 5 mm | 
| Flute Design | Spiral flute with self-starting tip | 
| Split Point Angle | 118° | 
| Coating | Industrial grade Titanium Nitride (GoldMax) | 
| Shank Type | Dual hardened non-slip hex shank | 
| Shank Compatibility | Standard 1/2" drill chucks and VersaDrive Rapid Lock adapters | 
| Impact Rating | Dual hardening process for impact use, up to 15× faster speed | 
| Compatible Tools | Impact wrenches, impact drivers, rotary drills, drill presses, magnetic drills (with adapter) | 
| Material Suitability | Structural steel (<1000 MPa), stainless steel (Inox), aluminium, cast iron, plastics | 
| Recommended Torque Range | 280–750 Nm (depending on diameter) | 
| Recommended RPM Range | 3100–1200 to 260–230 RPM (depending on diameter) | 
| Size Markings | Laser etched at each step | 
| Kit Contents | 4 pc set in small insert foam case | 
Free UK Delivery
This product is eligible for free shipping within the UK, excluding Northern Ireland and the Highlands where a delivery cost may apply. Free delivery will be applied automatically at checkout for your whole order.
For more information, please see our delivery terms and conditions.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/files/505020-SET2-Foam_5d9518a6-3362-401c-a4b6-68c4c760c06e_{width}x.jpg?v=1751915077) 
                        
                      ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/files/Adapters_VersaDrive_09_eb2409e2-cdf8-4107-8cae-118de54e68ab_{width}x.jpg?v=1751915077) 
                        
                      ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/505020_25e1d82d-319b-4af7-b584-253896dfb91a_{width}x.png?v=1751915077) 
                        
                      ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/Screenshot2022-11-11212155_8955c333-9dd1-41de-8082-cc69a45710ef_{width}x.png?v=1751915077) 
                        
                      ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/73a99ecf-cd73-4d68-90df-6f6199a69f07_4aa6a250-a4d7-4fe5-8692-fe0cac1a6b7c_{width}x.jpg?v=1751915077) 
                        
                      ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/ecb9af8a-8a37-44a0-aaa4-3a83aafe389b_d7c4dfa8-f31f-45c2-8ce6-6826601b022f_{width}x.jpg?v=1751915077) 
                        
                      ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/files/505020-SET2-Foam_5d9518a6-3362-401c-a4b6-68c4c760c06e_130x.jpg?v=1751915077) 
                    ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/files/Adapters_VersaDrive_09_eb2409e2-cdf8-4107-8cae-118de54e68ab_130x.jpg?v=1751915077) 
                    ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/505020_25e1d82d-319b-4af7-b584-253896dfb91a_130x.png?v=1751915077) 
                    ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/Screenshot2022-11-11212155_8955c333-9dd1-41de-8082-cc69a45710ef_130x.png?v=1751915077) 
                    ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/73a99ecf-cd73-4d68-90df-6f6199a69f07_4aa6a250-a4d7-4fe5-8692-fe0cac1a6b7c_130x.jpg?v=1751915077) 
                    ![HMT 505020-SET2 VersaDrive Step Drill Bit Set: 12, 22, 30, 40mm [8615]](http://shop.weldmet.co.uk/cdn/shop/products/ecb9af8a-8a37-44a0-aaa4-3a83aafe389b_d7c4dfa8-f31f-45c2-8ce6-6826601b022f_130x.jpg?v=1751915077) 
                    