SK Type High-Speed & Fine Balanced Tool Holders

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SK Type High-Speed & Fine Balanced Tool Holders

TAPER TYPE: SK (DIN 69871)

German/European Standard - Premium Quality

SK Type tool holders are the German/European standard for machining centers. These high-speed, fine balanced holders provide excellent rigidity and precision for demanding applications. Perfect for high-speed machining with superior runout accuracy.

AVAILABLE CONFIGURATIONS

SK Taper Sizes

SK30 - Smaller machines
SK40 - Most common (≈BT40)
SK50 - Heavy duty

ER Collet Sizes

ER11 ER16 ER20 ER25 ER32 ER40 ER50

Gauge Lengths (L1)

70mm 80mm 100mm 120mm 135mm 150mm 160mm

HOW TO ASSEMBLE

Insert SK holder into machine spindle

Select correct ER collet for tool diameter

Place collet into holder nose

Insert cutting tool into collet

Thread on ER nut and tighten with spanner

WHAT FITS WITH WHAT

Configuration	Best For	Tool Range
SK30 + ER11/ER16/ER20	Small tools, engraving, finishing	1-13mm
SK40 + ER25/ER32	General purpose, most common	3-20mm
SK50 + ER40/ER50	Heavy duty, large tools	6-34mm

SK40 is equivalent to BT40 in terms of machine compatibility. Choose based on your machine's spindle taper.

Compatible Accessories & Holders

Specifications

Material & Construction

Material: High-grade steel, Accuracy: High precision, Finish: Fine balanced for high-speed, Balancing: Fine balanced

SK Type High-Speed & Fine Balanced Tool Holders

Name: SK Type High-Speed & Fine Balanced Tool Holders
Brand: ZHUZHOU SENO
SKU: sk-type-high-speed-fine-balanced-tool-holders
Availability: InStock

Select Specifications

D=Diameter | L1, L2, L3=Length Dimensions | L=Overall Length | D1=Shank Diameter | All in mm

Select blade width, groove depth (T), and working radius range to find the right Face Groove tool

Select boring diameter range, shank diameter (D), and insert type (C=diamond/T=triangular) to find the right boring head

Select CBA model (complete boring range) and internal boring range to find the right micro finish boring head

Select LBK model (matches your CBA boring head) and extension length to find the right extension rod

Select BT type (spindle taper), LBK number (locking block socket), CBA head model, and projection length (L1) to find the right boring head shank

Variant Type

Orientation

φ Dmin (Minimum Bore Diameter)

φ d (Diameter)

Square Dimension (h)

How to Choose the Right Holder

Shank Height (H): Choose based on your machine's tool holder/turret slot size
Tool Height (H3): Must match the H dimension of your SPB Tool (26mm or 32mm)

Example: If you have SPB26-3 tool (H=26mm), select H3=26mm

Width (W)

Shank Height (H)

Tool Height (H3)

Must match your SPB Tool's H dimension

Product Type

Size

Length

Drill Type

Diameter (D)

Length Variant

Flutes

HRC Grade

HRC≤56 is recommended for best price/performance ratio with newest nano-black coating technology.

Blade Width

Groove Depth (T)

Radius Range (Min/Max)

Found variant

Legend:

Blade Width Groove Depth (T) Radius Range Compatible Insert

No variants match the selected filters.

Try adjusting your filter selections.

Found variant

Legend:

Width (W) Height (H) Other Dimensions Insert/Accessories

No variants match the selected filters.

Try adjusting your filter selections.

ER Collet Model

Diameter

Diameter (D)

Length (L)

Shank Diameter (d)

Cutting Diameter

Corner Radius

Overall Length

GT Model

Thread Capacity

Standard

Lifting Capacity

Model

Model Code

QTY & Sizes

Shank Type

Collet System

Length (L1)

Type

Bore Diameter (d)

Length (L1) (Optional)

MTA Type

Tap Type

Thread Size

Pitch (mm)

Length

ERG Model

Metric Thread Size

ER Nut Type

ER Nut Model

Spanner Type

Spanner Model

Standard

Model

Model Code

Base Model

Length (L)

C Holder Size

ER Collet Size

Grade / Type

Length (L1) (Optional)

SL Holder Size

ER Collet Size

SK Type

ER Collet Size

Length (L1)

SK Taper

SLN Bore Size (inner diameter "d")

BT Type

BSA Size (for square shank tools)

BT Type

BSB Size (for square shank tools)

BT Type (spindle taper)

GT Chuck Type (tapping collet system)

Shank Diameter (D) (straight shank)

GT Chuck Type (tapping collet system)

Morse Taper Type (spindle taper)

GT Chuck Type (tapping collet system)

BT Type (spindle taper)

Clamping Range (drill bit size range)

MT Type (Morse Taper)

Capacity (drill bit size range)

SK Type (spindle taper)

Range (drill bit size range)

B Type (arbor taper)

MT Type (Morse Taper)

BT Type (spindle taper)

MT Type (tool taper)

Puller Type (DIN standard)

Model (MS.NO size)

Clamping Range (drill bit size range)

Taper Type (Morse or Jacobs)

Variation (chuck configuration)

Boring Range (min-max diameter)

Shank Diameter (D) (boring bar shank)

Insert Type (C=diamond, T=triangular)

CBA Model (complete boring range)

Internal Boring Range (diameter range)

LBK Model (extension rod size)

Extension Length (L) (reach)

BT Type (spindle taper)

LBK No. (locking block socket)

CBA Head (boring head model)

Projection Length (L1) (reach into workpiece)

Select Variant (multiple options available for this diameter)

SKU / Article Number

φ(d)

Morse #

★

Price per piece

€

30% Discounted price

D (Diameter)

L (Overall)

Insert Code

Insert Count

Insert

Blade Width

Blade Height

Groove Depth

Orientation

Working Radius Range

Compatible Inserts

φ(d)

Morse #

H7 Tolerance

Stock: pcs

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Please select specifications above to see details

SK Type High-Speed & Fine Balanced Tool Holders

AVAILABLE CONFIGURATIONS

SK Taper Sizes

ER Collet Sizes

Gauge Lengths (L1)

HOW TO ASSEMBLE

WHAT FITS WITH WHAT

Compatible Accessories & Holders

ER Collets

ER Nuts

ER Collets extension Bars

C/SL Straight small Shank Holders

Specifications

Material & Construction

SK Type High-Speed & Fine Balanced Tool Holders

Select Specifications

How to Choose the Right Holder

Login to Purchase

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