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![BRILLIANT TOOLS BT101925 Step Drill Bit Set 3-Piece Diameter 4-32 mm [Powered by KS Tools] B08TMWZSKY BRILLIANT TOOLS BT101925 Step Drill Bit Set 3-Piece Diameter 4-32 mm [Powered by KS Tools] B08TMWZSKY](https://imgcdn.pricemachine.co.uk/prx/M6373037/22471d7cbc721666cd0ef915e152dfc8/eyJ1cmwiOiJodHRwczovL20ubWVkaWEtYW1hem9uLmNvbS9pbWFnZXMvSS8zMUpOTTM1aHpmTC5fU0w1MDBfLmpwZyIsImRhdGUiOiIyMDI2MDcyMiIsInNpemUiOiIxODB4MTgwIiwiYmFzZTY0aW1hZ2UiOnRydWV9/obj.jpg)
BRILLIANT TOOLS BT101925 Step Drill Bit Set 3-Piece Diameter 4-32 mm [Powered by KS Tools] B08TMWZSKY
3-piece set for drilling, drilling and deburring in one operation with triangular shank for a firm hold and high loads made of durable HSS steel with high wear resistance for sheet metal, non-ferrous metals, plastic plates For materials up to 5 mm. In plastic case, Manufacturer: BRILLIANT TOOLS
£26.95
Shipping: Free
Amazon

4–52mm Step Drill Bit Set BPVYPYPAB
Includes step drill bits ranging from 4mm to 52mm for multiple hole sizes in a single tool. Straight flute design provides clean, precise cutting in wood, aluminum, and thin metal sheets. Titanium coating enhances surface hardness and improves resistance to wear and heat. Functions as both a drill bit and core hole opener for versatile workshop applications. Suitable for use in standard power drills—ideal for woodworking, metal fabrication, and DIY projects.
£91.57
Shipping: Free
Amazon Marketplace - Shenzhen Aoxikang E-commerce Co., Ltd.

3PCS M35 Cobalt Step Drill Bits, 4-20mm 9-Step Cone Cutter BDCPCQZYL
Product Sizes: 9-step design (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); flute length: 55mm; shank diameter: 6.30mm; material: HSS M35 (HSS-Co5) cobalt steel. Features 1/4" hex shank, with 1/2" square to 1/4" hex adapter included; black straight flute Reliable Design & Efficient Drilling: 118° X-type split point for precise positioning and anti-slip; hex shank ensures tight clamping. Black spiral flute enables smoothly chip removal, reducing resistance and clogging. M35 cobalt steel offers durability; cone structure meets multi-hole size needs, saving time Package: Includes 3PCS HSS M35 step drill bits (black straight flute), 3 hex shank adapters, and 3 sets of retaining ring & pin (rubber O-ring + lock pin). The free retaining ring & pin set prevents sockets from falling off the adapter. The adapter converts 1/2" square drive (for impact wrenches) to 1/4" hex shank – essential for impact wrenches, optional for standard electric drills. Versatile Uses: Suitable for drilling aluminum, iron, steel (≤5mm thick), and 304 stainless steel (≤1mm with hand drill, ≤2.5mm with bench drill). Ideal for metalworking, electrical, plumbing, DIY, and construction. Compatible with impact wrench, bench drill, hand drill, and cordless drill. Notes: Keep water cooling during operation to extend bit life. Do not use on concrete, tiles, glass, or other hard materials. Check device compatibility before ordering.
£59.69
Shipping: Free
Amazon Marketplace - QINWUHOME

CMT K935-317 Step Drill Bit B08139WXHV
Milling cutter for recessed doors, furniture backs, drawer fronts and many other jobs Equipped with anti-kink hard metal cutting edges and subjected to high temperature treatment to ensure durability Bearing included S=Ø8mm - D=31.8mm - Cutting length =12.7mm, Weight: 0.2866009406 Pounds, Manufacturer: CMT
£15.17
Shipping: £4.49
Amazon

Ruko 101051H Step Drill Bit
Step drill bit with drilling range from 4.0 to 20.0 mmNEXT GENERATION: centers, drills, reams, and deburrs sheet metal in a single operationDeep-ground, spiral flute for smooth running and high cutting performanceClean removal of non-breaking chips, reduces build-up edges and cold weldingTaper facilitates retraction in through-drilled sheetsHSS: High-performance high-speed steel for materials up to 900 N/mm²Overall length: 81 mm
£45.51
Shipping: Free
eBay - rapidonline

Step Drill Bit – 1PC, 4–32mm M35 BPVYPYLDY
Single-piece step drill bit with 15 graduated steps from 4mm to 32mm for multiple hole sizes. Made from M35 cobalt high-speed steel for enhanced strength and heat resistance. Spiral flute design improves chip removal and delivers smoother cutting performance. AlTiN (aluminum titanium nitride) coating increases surface hardness and wear resistance. Suitable for clean, precise drilling in stainless steel, aluminum, and other hard materials.
£62.29
Shipping: Free
Amazon Marketplace - Shenzhen Aoxikang E-commerce Co., Ltd.

HSS4341 Spiral Cone Step Drill Bit Set MNACMMCCM-6-55MM
Manufactured from premium HSS4341 high speed steel for stable metal cutting performance Adopt spiral flute design to discharge steel chips smoothly without drill blockage Offer three common aperture ranges 6-55mm, 6-60mm, 6-65mm for various steel machining Feature layered cone structure to form neat burr-free holes on thick steel plates Support long-time continuous drilling operation for industrial steel processing work
£83.59
Shipping: Free
Amazon Marketplace - Dongyuan County Hanwei E-Commerce Co., Ltd.

LENOX Step Drill Bit, 1/8 to 1/2 Inch (30881VB1) B0002438LC
Drill bits feature a 2-flute design that cuts fast, clean, round holes Enhanced flute design allows drill bits to remove chips rapidly Each drill bit has a steam-oxide treatment that adds durability Split-point design starts on contact for fast penetration and less walking Drills 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32" and 1/2" holes, Weight: 0.08 Pounds, Manufacturer: Lenox
£24.26
Shipping: Free
Amazon

3PCS M35 Cobalt Step Drill Bits Set, Cone Cutter BECZQYECL
Product Sizes: Available in 4-12mm (5-step), 4-20mm (9-step), 4-32mm (15-step); total flute length: 44mm, 52.3mm, 78mm; shank diameter: 6.30mm; material: HSS-Co5. Shank: 1/4" hex shank (1/2" square to 1/4" hex adapter included). Flute: Spiral flute Reliable Design & Efficient Drilling: 118° X-type split point ensures precise positioning and reduces slipping. Hex shank provides anti-slip grip for tighter clamping. Straight flute enables rapid chip removal and prevents clogging. Made of HSS-Co5 for hardness and wear resistance. Cone structure allows multiple hole sizes with a bit, saving time and tool changes Package: Includes 3PCS HSS-Co5 step drill bits (4-12mm 5-step, 4-20mm 9-step, 4-32mm 15-step) with spiral flute design, plus 1 hex shank adapter and 1 ring pin. The free retaining ring & pin set prevents sockets from falling off the adapter. The adapter converts 1/2" square drive (common on impact wrenches) to 1/4" hex shank – essential for impact wrench use, optional for standard drills Versatile Uses: Ideal for drilling iron plate (up to 5mm thick), aluminum plate (up to 5mm thick), steel plate (up to 5mm thick), 304 stainless steel (up to 2mm thick), and other sheet materials. Ideal for metalworking, electrical installations, plumbing, DIY projects and general construction. Compatible with impact wrenches, bench drills, hand drills, cordless drills and lithium drills Notes: Important: Water cooling is required during operation – continuously apply water to cool the bit and extend service life. Verify device compatibility prior to ordering
£64.02
Shipping: Free
Amazon Marketplace - QINWUHOME

Step Drill Stepped Drill Bits Industrial Grade Speed Steel Helical Cutting Tools Drilling Holes for Aluminum Stainless Steel Pp Wood Black
1. Tough and Safe: Featuring wear resistant with a robust speed steel build, this step drill ensures extended tool life and consistent performance...
£77.60
Shipping: Free
OnBuy

HSS4341 Spiral Cone Step Drill Bit Set MNACMMCCM-6-65MM
Manufactured from premium HSS4341 high speed steel for stable metal cutting performance Adopt spiral flute design to discharge steel chips smoothly without drill blockage Offer three common aperture ranges 6-55mm, 6-60mm, 6-65mm for various steel machining Feature layered cone structure to form neat burr-free holes on thick steel plates Support long-time continuous drilling operation for industrial steel processing work
£95.03
Shipping: Free
Amazon Marketplace - Dongyuan County Hanwei E-Commerce Co., Ltd.

6-Piece Stepped Drill Bit Set – Hexagon Shank BPVYPYLDD-6PCSNOPACKAGING
Set includes 6 stepped drill bits in common metric sizes: 20mm, 25mm, 32mm, 40mm, 50mm, and 63mm. Designed for reaming and enlarging holes, especially suited for water pipe installation and plumbing tasks. Hexagon shank ensures secure grip and minimal slippage in standard power drills or drivers. Ideal for use on plastic, PVC, and thin metal pipes commonly used in residential and commercial systems. Durable construction supports repeated use in professional and DIY pipe fitting applications.
£156.67
Shipping: Free
Amazon Marketplace - Shenzhen Aoxikang E-commerce Co., Ltd.

Ruko A101032T Stepped Drill Bit Set in Tin B008HO9PO8
With this robust tool, plates can be centred, drilled and deburred in one operation. HSS plus wear-resistant coating of titanium nitride. Longer service life due to the increased surface hardness of about 2300 HV. For the machining of steel, cast iron, non-ferrous and light metals., Manufacturer: Ruko
£60.44
Shipping: Free
Amazon

6-Piece Stepped Drill Bit Set – Hexagon Shank BPVYPYLDD-6PCSFABRICBAG
Set includes 6 stepped drill bits in common metric sizes: 20mm, 25mm, 32mm, 40mm, 50mm, and 63mm. Designed for reaming and enlarging holes, especially suited for water pipe installation and plumbing tasks. Hexagon shank ensures secure grip and minimal slippage in standard power drills or drivers. Ideal for use on plastic, PVC, and thin metal pipes commonly used in residential and commercial systems. Durable construction supports repeated use in professional and DIY pipe fitting applications.
£181.92
Shipping: Free
Amazon Marketplace - Shenzhen Aoxikang E-commerce Co., Ltd.
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![BRILLIANT TOOLS BT101927 Step Drill Bit, Diameter 4-20 mm [Powered by KS Tools] B08TMXG1R2 BRILLIANT TOOLS BT101927 Step Drill Bit, Diameter 4-20 mm [Powered by KS Tools] B08TMXG1R2](https://imgcdn.pricemachine.co.uk/prx/M6373037/24ea518b373b597bb57379a5a2b2b004/eyJ1cmwiOiJodHRwczovL20ubWVkaWEtYW1hem9uLmNvbS9pbWFnZXMvSS8yMUxJaHJhZjJETC5fU0w1MDBfLmpwZyIsImRhdGUiOiIyMDI2MDcyMiIsInNpemUiOiIxODB4MTgwIiwiYmFzZTY0aW1hZ2UiOnRydWV9/obj.jpg)























