Mountz 145783 EF055-E ESD 4mm HIOS Drive Electric Torque Screwdriver 4.9cNm - 54cNm

Mountz 145783 EF055-E ESD 4mm HIOS Drive Electric Torque Screwdriver 4.9cNm - 54cNm

Manufacturer: MOUNTZ

SKU : 145783

This mini electric torque screwdriver increases productivity and enhances product quality through precision torque control and user comfort

The electric screwdriver automatically shuts off once the preset torque is achieved

£708.66 £590.55
In stock

Free UK Delivery on orders over £75 including VAT

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Product Information

  • A low voltage electric torque screwdriver with a 4mm Hios drive and a torque range of 4.9cNm - 54cNm.
  • When the preset torque value is reached the precision automatic shut-off clutch will turn the torque screwdriver off to prevent over-torqueing. 
  • ESD safe.
  • This is a rugged production tool designed to increase productivity and enhance product quality through precision torque control and user comfort.
  • Has an external torque adjustment scale.
  • Can be connected with the Scout Screw Counter. 
  • Requires STC 30 Plus Transformer (power supply).
  • NRTL certified from TUV America, Inc.

Technical Details

Drive Size 4mm
ESD Safe Yes
Grip Type In-line
Drive Type HIOS
Maximum Adjustable RPM 1000
Minimum Adjustable RPM 500
Grip Diameter 1.2 "
Maximum Torque 54 cNm
Minimum Torque 4.9 cNm
Total Length 194.56 mm
Weight 8.5 oz

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Delivery and Returns

UK Delivery

We offer free standard delivery (2-3 days) on all orders over £75.00 including VAT (orders that weigh over 10kg could be subject to delivery costs).

Orders under £75.00 including VAT will be charged for UK delivery at a rate of £4.95 + VAT.

Next working day delivery is also available at a flat rate of £16.67 + VAT for items held in stock. This service will require someone to be at the delivery address to sign for your parcel, otherwise it will be delivered to an access point for collection. The cut off point for next working day delivery is 2.30pm Monday to Friday.

International Delivery

Rates and delivery times will vary depending on the country and delivery zone. Shipping rates and VAT exemptions will be calculated at the checkout, although orders that weigh over 5kg could be subject to additional delivery costs when the order has been processed. We will get in contact with you should delivery costs exceed our estimations before shipping the items.

Following the trade agreement between the United Kingdom and the EU, all goods sold from the UK to EU customers will not incur VAT at the point of sale. VAT will be paid by the customer to the customs agent before the goods are delivered at the customers country of situ VAT rate. There will also be additional duties and disbursement fees to be paid before the goods are delivered, which will vary item to item. Please note no refunds will be issued for returned goods due to the customer not paying any of the additional costs.

Please see our shipping and returns page for shipping costs to the destination country from our warehouse.


We are happy to accept items returned to us within 14 days of purchase and in this case we offer an exchange or a full refund via your original payment method, once we receive the items and process them in our warehouse.

Any returns which fall outside this 14 day time period may be considered on a case-by-case basis at our discretion and may be refunded as a credit against a future purchase. All items must be returned to Heamar in the same condition in which they were shipped and in a saleable condition. Heamar reserves the right to refuse a return if it is determined that the item has been used and then returned for any reason other than being ‘faulty’. The buyer is responsible for return postage unless the item is faulty.

For more information on ordering, shipping and returns, please click here.