Supplier reference photo. HSK ER-holder example with an ER25-type nut; form, size and connection are confirmed against the final drawing.

CNC Tool Holders

HSK TOOL HOLDER SERIES

HSK CNC Tool Holders

Name: HSK CNC Tool Holders
Brand: FuRui Tooling

HSK hollow-shank tool holders for specified collet, milling or drilling connections. Include the HSK form and size, machine model and required gauge length.

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Product description

Choose an HSK holder by form and size, cutting-tool connection, gauge projection and working clearance. The dimension drawing and sourced ER size examples below help define an inquiry. The FuRui catalog lists HSK holders without a dimensional series table, so the offered configuration and final drawing must be confirmed before order.

Form and size together

Supply the complete HSK interface designation from the machine or existing holder documentation.

Cutting-tool connection

Define the required collet, milling or drilling end separately from the spindle interface.

Confirmed configuration

Gauge length, retention details and inspection requirements are established through the quotation drawing.

HSK ER collet-chuck sizes and dimension drawing

Compare the spindle interface, ER series, gauge projection and nose clearance before choosing a holder. The manufacturer-published examples below are third-party dimensional references; they do not establish FuRui stock availability or an interchangeable part number. Send the required dimensions with your machine interface for confirmation.

HSK-A63 ER32 reference dimensions: L 100 mm from spindle-contact face, D 50 mm nut diameter. — Original selection schematic for Falcon F1A063H-ERS32100. Dimensions in mm; not to scale or for manufacture. Open full-size dimension drawing.

Falcon HSK ER size examples — all dimensions in mm
Source part number	Interface	Collet	L	Collet family range	D
F1A063H-ERS16080	HSK-A63	ER16	80	1–10	28
F1A063H-ERS20080	HSK-A63	ER20	80	1–13	35
F1A063H-ERS25080	HSK-A63	ER25	80	1–16	42
F1A063H-ERS32100	HSK-A63	ER32	100	2–20	50
F1A063H-ERS40100	HSK-A63	ER40	100	3–26	63
F1A100H-ERS32100	HSK-A100	ER32	100	2–20	50

Source: Falcon Toolings HSK DIN 69893 collet-chuck catalog (checked 8 October 2026). Part numbers identify the source examples, not FuRui order codes.

Read the dimensions before requesting a quotation

L — gauge projection: distance from the spindle-contact face to the front of the nut in this reference drawing. It is not total holder length or cutting-tool stick-out.
D — nut / nose diameter: check clearance to the workpiece, fixture and neighboring features. D is not the HSK flange size.
Collet family range: the range covered by different collets in that ER series, not the collapse range of one collet. Specify the actual cutting-tool shank diameter.

For example, an HSK-A63 spindle and a 12 mm tool shank still do not identify a complete holder: the table includes several ER options that cover 12 mm, with different nose envelopes. Confirm the ER series, L, coolant arrangement and tool clearance. Balance, runout, speed rating and supplied collet remain order-specific requirements.

Request an HSK holder drawing and quotation — include form and size, ER series, L, tool shank diameter and quantity.

HSK form is part of the interface, not an optional suffix

HSK is a hollow-shank interface with taper and face contact. Its retention arrangement is different from a conventional BT holder with a separate pull stud. An HSK holder is therefore not a direct substitute for a BT holder in the same spindle.

Within HSK, the form also matters. Form A includes drive-key features; E uses a symmetrical design without those drive keys; F uses a different flange-to-taper relationship. A matching size number does not establish interchangeability between forms. Read the machine’s complete interface designation rather than judging the holder from a front photograph.

Interface background: HAIMER tool-holder interface guide and BIG DAISHOWA HSK overview. Manufacturer-specific ratings in those references are not FuRui ratings.

Separate the spindle end from the cutting-tool end

An HSK designation describes the machine connection; ER describes a collet system at the other end. Neither identifies the whole assembly. A useful request states the HSK form and size, ER series or other tool connection, gauge length, tool-shank diameter and coolant arrangement.

For a replacement, send the existing holder code and a side-view drawing showing the gauge reference. State the intended maximum operating speed and the required assembled-tool runout or balance acceptance condition. The HSK label alone does not set those limits for a complete holder, nut, collet and cutting-tool assembly.

Request an HSK holder configuration review. If an ER nose is required, see ER collet sizes and selection; these do not determine the spindle interface.

Specification requirements

Use this FuRui inquiry checklist together with the separate HSK ER reference drawing and manufacturer-published size examples in the Product description section. Confirm the offered holder drawing before order.

Drawing confirmation requiredThis page provides a family/model index or an inquiry checklist, not a complete manufacturing drawing. Request the selected model dimensions, fit and required inspection criteria before ordering.

Spindle interface: HSK series
HSK form: Confirm form and size
Dimensions: Drawing or model confirmed

HSK CNC Tool Holders specification requirements
Required order data	Accepted information
HSK interface	Form, size and machine model
Holder type	ER collet, milling or drilling connection
Length	Gauge length or existing holder code

Application scenarios

Typical selection contexts for this series, not customer project claims. Confirm machine compatibility and cutting conditions for your setup.

HSK machining centers

Specifying replacement tooling for a machine with a documented HSK interface.

Tool-library expansion

Adding a defined cutting-tool connection within an existing HSK holder program.

Drawing-based sourcing

Reviewing a particular holder geometry without assuming a catalog stock model.

Inspection & order review

Specify the dimensions, tolerances and records your order requires. Acceptance criteria must be agreed for the selected model.

Drawing information to provide

HSK interface
Holder type
Length

Check the drawing reference faces and units. A catalog size alone does not define a tolerance or an inspection method.

Records to request

List any required dimensional report, material document or model identification photograph in your inquiry. Confirm availability and scope in the quotation.

For a drawing-based part, include the drawing revision and identify the critical dimensions. Website photographs are not inspection reports.

Packaging & delivery

Agree the packing method and photo requirements when confirming your order.

Order-specific photo confirmation

No verified shipment photographs for this series are currently published. Include selected-model, protective-packing and outer-label photos in your order requirements.

Discuss packing requirements

Photos to confirm before dispatch

Use this checklist to agree what should be documented for your selected model.

HSK form and size clearly identified
Contact interfaces and hollow-shank opening protected
Approved configuration referenced in the packing record

Stock, dispatch date and shipping method are confirmed with the quotation. Website images are not live inventory evidence.

Technical resources

Product specifications

Keep a copy of the current series information for comparison. Confirm the final model and drawing before placing an order.

View specifications

Compare tool-holder connections

Read interface names and ordering codes before choosing a holder.

Read the guide

Related selection information

Browse the existing tooling guides and compare product families before selecting a model.

Browse technical resources

Product FAQ

Selection questions for HSK CNC Tool Holders.

Request a quote

Is HSK size alone sufficient for an inquiry?

No. Give both the HSK form and size, plus the machine interface document. Different forms can have different drive and taper/flange geometry even when the size number looks similar. The cutting-tool connection must also be specified.

Where can I compare HSK ER holder dimensions?

This page includes a dimension drawing and attributed Falcon HSK-A63 / HSK-A100 ER examples. They explain gauge projection, nut diameter and ER collet family range. These are third-party references; the FuRui form, size, availability and final dimensions are confirmed against the offered drawing.

Can this page substantiate a high-speed rating?

No. HSK identifies an interface, not the rated speed or balance condition of the complete tool assembly. State the intended operating speed and inspection condition so the offered holder, nut, collet and cutting tool can be reviewed together.

Can an existing holder be reproduced from one photograph?

A photograph helps identify the type, but a code or dimensional drawing is needed to confirm the critical interfaces.