BT30 Tooling System
We offer ultimate Tooling Systems that meet user needs
for high precision, high rigidity, high gripping force,high balancing precision, and safety.

BT30 Super G1 Chucks

BT30 Hybrid G1 Chucks■Ultra High Precision■Super High Accuracy

Guaranteeing the integrated runout accuracy of within 5μm.
Highest precision in this industrial field.

With the collet holder system, 3μm of integrated runout
accuracy is guaranteed.
With the inside-lock nut mechanism, smaller runout
accuracy is attained than that of shrink-fit holders.

●Dimensional Drawing■Super Rigidity･Super Grip ForceMost effectively usable for machining work by the end-mill.

■High speed rotation■Super Balancing

Locknut and Safety Cover (PAT.) ensuringsafety in high rotation machining.

Gripping Capacity Nut Outside Diameter Total Length Length from the Length Adjustment ScrewdD
L1
Gauge Line L2
MaximumℓApplicable Collet Applicable(option)
Lock NutTaper■Easy operation

Gauge lineTaper■Safety

Since heating device is not necessary,it takes very shorter time setting andremoving tools than those for shrink-fitholders.
Unit: mmApplicable Spanner Length Adjustment Coolant Seal
Weight (kg)Screw (option) Screw (option)(option)Taper

Gauge line

Simple straight shape
Usable up to 30,000min-1 (BT Shank)

For high rotation machining, even the standard model can be used
for rotation up to 25,000min-1

Model●Dimensional Drawing

Unit: mm
Model

Collet Gripping Nut Outside Diameter Total Length Length from the Length Adjustment Screw
DL1
Capacity dGauge Line L2
MaximumℓTaper

Applicable Collet Applicable(option)
Lock Nut

Applicable Spanner Length Adjustment Coolant Seal
Weight (kg)Screw (option) Screw (option)(option)◆The above Maxｌof tapered is the length when Length Adjustment Bolt (APM) is used.
◆Dimensions of tapered shank are in accordance with MAS4003-1982 BT Tapered Shank.
◆Collet, Spanner, Coolant-Sealing Back-up Screw, Length Adjustment Bolt and retention knob are not included in the above. They are separate accessories.

◆The above Maxｌof tapered is the length when Length Adjustment Bolt (APM) is used.
◆Dimensions of tapered shank are in accordance with MAS4003-1982 BT Tapered Shank.
◆Collet, Spanner, Coolant-Sealing Back-up Screw, Length Adjustment Bolt and retention knob are not included in the above. They are separate accessories.

SG Collets

SG Collets
Unit: mm

Unit: mmModel

Bore Size

Outside Diameter

LengthApplicable
Main Body

Model

Bore Size

Outside Diameter※In addition to the standard collets, special sizes are also available.
※Collet Range: Up to -0.1mm of the collet capacity.
※In addition to the standard collets, special sizes are also available.
※Collet Range: Up to -0.1mm of the collet capacity.

Hook Spanners

SGN Lock Nut

Model

Applicable
Main Body

ApplicableColletApplicable
Hook Spanner

Model

Applicable
Main Body

Spanners with Torque LimitersApplicable
Lock Nut

Model

Set Torque(Nm)Applicable
Main Body

Applicable
Lock Nut

Pin Spanners

HGN Lock Nuts

Model

Applicable
Main Body

ApplicableColletApplicable
Pin Spanner

Model

Applicable
Main Body

Applicable
Lock Nut※Hook spanners are separate accessories.
※Torque-fixed type with recommendable torque.
※Hook spanners are separate accessories.
※Hook spanners are separate accessories.

LengthApplicable
Main Body