• Dear customers, due to maintenance work, the eShop will be unavailable on Saturday, May 13 from 07:00 a.m. till 03:00 p.m. (CET). We apologize for any inconvenience.
  • eShop availability information
    Due to a system migration, the eShop will be unavailable on 23/05/2026 from approximately 06:45 to 15:00 (CET). Thank you for your understanding!

Side lock arbor Form AD, BT 50 short, Clamping range ⌀ D1: 6mm

Article no.: 724721 Catalog no.: 303670
Price per 1 Piece
Net price: CHF 112.50
Do you want to order more than one article? To quick entry
on request
Delivery in 1 - 2 weeks
0 pieces in stock

Select article variation and quantity

Clamping range ⌀ D1 (mm) Price per 1 Piece (incl. VAT)

Add to wishlist

Share this product

or copy this link

Product details

Technical Data

Through-coolant no
Entry of cooling lubricant with cooling lubricant entry, decentrally via collar
Escape of cooling lubricant with cooling lubricant exit, radial
Cooling lubricant yes
Holder type iSO taper
Holder shape MAS BT
Holder version dimensionless nominal size with cooling
Holder size, no dimensions 50
Type of mounting hole (internal mounting)
Shank length 101.8 mm
Interface on machine side BT 50
With flat surface contact yes
Distance a 1.5 mm
Min. clamping diameter 6 mm
Max. clamping diameter 6 mm
Gauge length 63 mm
External diameter, tool-end 25 mm
Body length (tool side) 25 mm
Concentricity 3 µm
Balance quality G at rotational speed g 2.5 at 25,000 rpm
Machining strategy HPC
With cooling channel bore no
Interface joint 1; joint 2
Type of product side lock arbor
Overall length 164.8 mm
Overall height 25 mm
Overall width 25 mm
Standard DIN 6359
Shape AD
Through-coolant available yes
Content 1 pcs.

Identification & Classification

Article number 724721
Catalog number 303670
EAN / GTIN 4062406250188
Manufacturer number 303670 6
Manufacturer/responsible person Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com

Description

Version:

All shanks hard turned (for smooth running!).

Advantage:

The double contact between the taper and the flat flange creates a more stable and precise clamping situation:
  • Better surface quality
  • Longer tool life times
  • Consistent seating in the headstock (even at high speeds)
  • Smaller radial run-out
A BT double contact arbor can also be used in a standard BT machine spindle – and vice versa. The advantages of the double contact are however achieved only when a double contact arbor and double contact spindle are used together.

Application:

For clamping tools with side flats to DIN 1835 B and DIN 6535 HB.

Optional extras:

Pull studs (PS) No. 308760 − 308806. Pull stud wrenches No. 308820; 308835.

Downloads & documents

Suitable products

Services & product advisors

Flyers

If you see this, something went wrong, or you disabled javascript

Select pick-up location

Sign in

Are you a new customer?

Login

Your contact person

Set commission

Your customer card

Please present the QR code at the checkout.
Retrieved on 
To shopping cart