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Floating tapping holder BT / MT / C, GT12 / GT24 / TC820

Availability:

Select a variant to see available quantity pcs.

€69.73

Shipping costs are not included in the price.

Quantity

pcs.

Shipping time: 24 hours

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Select a product variant:

Individual variants may differ in price

Variant

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BT30-GT12

BT30-GT24

BT30-TC820

BT40-GT12

BT40-GT24

BT40-TC820

BT50-GT12

BT50-GT24

BT50-TC820

MT2-GT12

MT3-GT12

MT4-GT12

MT5-GT12

MT3-GT24

MT4-GT24

MT5-GT24

MT3-TC820

MT4-TC820

MT5-TC820

C16-GT12-110L

C20-GT12-110L

C25-GT12-110L

C32-GT12-110L

C40-GT12-110L

C20-GT24-130L

C25-GT24-130L

C32-GT24-130L

C40-GT24-130L

Click Available to show variants with 24h shipping

Product description

Tapping holder body with axial compensation BT / MT / C, GT12 / GT24 / TC820

Tapping holder body with axial compensation in both directions and a removable tap collet. The family includes BT tapers, Morse tapers and cylindrical shanks. Select the machine shank and the interface system for the separately selected tap collet.

The selected item is the holder body. The tap collet and the tap itself are separate items. BT versions include a pull stud; check the machine's retention requirements when selecting the holder.

Application and selection

The holder is designed to retain a removable tap collet during tapping. The body provides axial compensation. Select the body interface, machine shank and separate tap collet specifications together.

Selection item	Feature to check	Purpose
Machine shank	BT, Morse taper or cylindrical shank	The body must match the machine's shank interface.
Body interface	GT12, GT24 or TC820	The system identifies the connection for the separate tap collet.
Tap collet	Connection, tap shank diameter and square	The nominal thread size alone does not define all tap shank dimensions.
Selected variant	Tapping range and dimensions on the variant card	Specifications differ between versions.

BT, Morse taper and cylindrical shanks

Family	Shank designation	Variant features
BT	BT30, BT40, BT50	BT taper shank; the tap collet system is a separate part of the designation.
Morse taper	MT2, MT3, MT4, MT5	Morse taper shank; MT is the designation used in the variant code.
Cylindrical shank	C16, C20, C25, C32, C40	The number after C identifies the shank diameter in millimetres. Available diameters depend on the body interface system.

Every shank type is not available with every interface system. Use the specific combinations in the variant selector. The collet system designation does not replace the machine shank designation.

Tap collet connection

System	Connection diameter	Selection
GT12	19 mm	Select a collet that matches the system and connection dimensions.
GT24	30 mm	Check the collet connection diameter.
TC820	31 mm	Check the collet connection diameter.

GT24 has a 30 mm connection and TC820 a 31 mm connection. This diameter difference matters when selecting components. Check both the system designation and connection diameter.

Tapping range and dimensions

Version	System	Range on the variant card
BT30, BT40 and Morse taper	GT12	M2-M16
BT50 and cylindrical shank	GT12	M3-M16
BT and Morse taper	GT24	M4-M30
BT and Morse taper	TC820	M4-M30
Cylindrical shank	GT24	M5-M30

The stated ranges describe the relevant body configuration. The correct tap collet must also match the diameter and square of the selected tap shank. Do not apply one version's range to other variants.

Dimension designation	How to read it
Body dimension for BT versions	Dimension from the interface face to the flange, excluding the tapered shank.
Body dimension for Morse taper versions	Dimension of the body section, excluding the tapered shank.
110L in a C version code with GT12	Body dimension of 110 mm; the shank is shown separately.
130L in a C version code with GT24	Body dimension of 130 mm; the shank is shown separately.
C version shank	Shank length of 70 mm; its diameter follows the C designation.

The body dimension and shank length are separate specifications. The 110L and 130L code endings do not identify the overall length of a complete holder fitted with a tap collet.

Axial compensation and collet replacement

The bodies are shown with axial compensation in both directions. The tap collet is a removable component fitted into the body interface. Body compensation and selection of the separate collet are two parts of assembling the tapping arrangement.

The body designation does not specify the release torque of a separate overload clutch. If a clutch-equipped collet is required, select the appropriate component using its own specifications.

Contents and separately purchased items

Item	Included in this offer
Holder body	The item selected in this family.
Pull stud for BT	Included with BT variants; check that its specification matches the machine.
Tap collet	Purchased separately.
Tap	Purchased separately.

The collet and tap pictured beside the holder illustrate its use. Select both components for the specific interface system and tool.

Selecting compatible components

Step	Action
1. Shank	Select BT, Morse taper or the required cylindrical shank.
2. Body interface	Select GT12, GT24 or TC820 and confirm the connection diameter.
3. Tap	Check the nominal thread size, tap shank diameter and square.
4. Tap collet	Select a separate collet with a matching connection and the correct tap retention dimensions.
5. Dimensions	Compare the body and shank dimensions with the card for the exact variant.

The cylindrical GT12 cards also list G3, JJ3 and TC312, while the cylindrical GT24 cards list G12 and JJ4. This information applies to those cylindrical versions. It is not a universal replacement list for every BT or Morse taper body.