MK5 Mandrel Tube Bender

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£809.00 £674.17
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UK Made MK5 Mandrel Tube Bender

2 day delivery on this item

Mandrel Tube Bender for mild steel, stainless steel and aluminium. Maximum capacities are 1 1/2"   (38.1mm) (14swg) in aluminium and copper and 1 1/4" diameter 16swg (1.5mm) in mild steel and 1 1/8" (16 swg) stainless steel tubing.

True Mandrel Bender with Internal Bullet Mandrel System which allows bends down to 1.25D (1.25 times the tube diameter as a bend radius) This makes it perfect for racing car water and oil pipes where the routed pipes can hug the chassis or engine. It can also be used in any situation where a bend is required tighter than the 3D bends possible with a rotary draw bender.

Because of the sheer physical effort involved in bending 1.25" x 16 swg steel this machine has a five to one reduction ratio between the operating spindle and the main mandrel spindle which means it can bend 1.25” x 16swg steel tubing on a 2.0” centre line radius. In all cases, a thinner wall tube can be bent very satisfactorily and various internal 'bullet'-type mandrels in steel or nylon can be supplied to suit your particular tube wall thickness. Due to the unique design, the benders will allow amazingly tight bends to be formed with the minimum of tube distortion (a nominal 3-4% of the diameter).

The MK5 Mandrel Tube Bender comes with an easy-to-read degree dial to allow precise angles of bend to be achieved and repeated. The machines are extremely easy to use and allow for multiple bends in the same piece of tube at alternate angles on different planes. Once the machines are set for a particular size of tube it will be found that multiple bends are rapidly achieved. Breaker Bar included.

Check out the sample pictures above of the 5/8" and 3/4" od tubing bent on a 1.5" CLR, and the 1.0" steel and stainless steel tube bent on a 2.0" CLR..

Price includes the machine only. All die sets are extra and priced below. (die set comprises of the main die, backing block and internal bullet mandrel). If you require a custom diameter die set on any radius not listed please call for a price. Free shipping on this bender. 

If you already have a 1" x 2" CLR die and you want a 1" x 1.5" CLR bend you can use the same backing block and mandrel bullet and just buy the main die on its own. The tube bender is 30kg in weight and easily mounted in any decent vice or can be bolted permanently to a suitable bench or stand. 

For large diameter stainless 16swg and optional torque multiplier is available to reduce the bending effort 10:1. Call us to discuss.


Product Code UTMK5
Maximum OD Mild Steel 1 1/4" x 16swg (1.5mm)
Maximum OD Stainless Steel 1 1/8" x 16swg (1.5mm)
Maximum OD Aluminium 1 1/2" x 14swg (1.9mm)
Length of Machine 840mm
StandardDies Available 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1 1/4", 1 3/8" & 1 1/2"
Custom Dies any size - call us
Maximum Bend Angle 180°
Gross / Net Weights 30 / 28kg


Standard die sets are available off the shelf in the sizes in the dropdown above. Custom Die Sets can also be made in any size to order. Please call for details. Steel mandrel bullets are used for mild steel and stainless steel, and nylon internal mandrel bullets are recommended for aluminium as very little if any further lubrication is required.  

Explanation of CLR (centreline radius)

CLR (centreline radius) is the distance from the centre to the edge of the main bending die. eg. If you have a 1.00" od x 2.00" CLR die set the complete with (diameter) of the die will measure 4.00" across and centre to edge will be 2.00". If you make a 180° bend and measure centre of tube to centre of tube across your u-bend it will measure 4.00".

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Delivery & Returns

Items under 30kg will be shipped by either 24hr courier or 1st class Royal Mail depending on item and weight and size.
All orders will be packaged and despatched same or next day. Orders made later in the day will most likely be sent out the following day.
We use a Next Day Delivery service however this service is subject to stock, courier availability and courier area. A signature is required for courier deliveries so please arrange for someone to be in at delivery address.   

Delivery prices are calculated by total order weight & size and are as follows:


UK Mainland

Highlands & Islands










45kg +



Buying from outside GB Mainland.

We are happy to deliver worldwide upon request. Because of the many variables involved our website cannot calculate global shipping or deduct UK Tax, please call on +44 1509 812171 or email and we will work out the best price for you.

Heavy Goods Items/ Pallets

If you are ordering to Mainland UK or Highlands and Islands, once added to your basket, our shipping calculator will work out a shipping price depending on your delivery post code. Delivery can take up to 4 working days from point of order but is often sooner depending on location. We will call to let you know estimated delivery date, you may be required to help the driver move the product from the roadside to your desired location, please ensure somebody is in to receive the goods as there is a redelivery charge of £30 should you miss it.

We also ship heavy goods and pallets worldwide, however not through the website, please call on +44 1509 812171 or email

Returns Policy 
Stakesy’s Guarantee: 14 Day Money Back Guarantee 

1/ Items returned under the 7 working day cancellation period 
If for any reason you are unhappy with your purchase, you can return it to us in its original condition within 7 days of the date you received the item, unopened (with any seals and shrink-wrap intact) and we will refund the cost of the item and the cost of sending the item to you as follows: 
-where you are returning an item that was part of a larger order, we'll refund the per-item charge for delivery that you incurred -where you are returning an entire order, we'll refund all delivery charges that you incurred -we will refund only standard shipping charges for items delivered mainland UK (excluding Highlands & islands and orders over 25 kilos in weight)

2/ Items returned under 14-day returns guarantee 
Where you are withdrawing from your purchase between 7 and 14 days after delivery, and there has been no error on our part, we will refund only the cost of the item minus 10% handling charge. We will not refund the cost of delivery or other services provided to you in connection with your purchase.

3/ Any goods items over 60 kg that have incurred special freight charges are excluded and the buyer will be responsible for both arranging and the costs of the return delivery.

Refunds will be paid within thirty days of cancellation. 

Please post goods to be returned or exchanged to:

Stakesy’s Metalwork Machinery, Unit 12 Hayhill Industrial Estate, Loughborough, LE12 8LD.

It is crucial that you pack the goods to be returned the same way as we sent out. Please consider that a returned item that is damaged in return transit may well be un-refundable if we cannot re-sell. Please include a note of your requirements and original invoice number.