Smaller shank groups
The catalog groups this series around 6–20 mm tool shanks, with interface-specific combinations.
Catalog reference image. Final configuration is confirmed in the quotation.
CNC Tool Holders
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BT-SLB
BT SLB Side Lock End Mill Holders
Overview
BT30, BT40 and BT50 SLB side-lock end mill holders for listed 6–20 mm shank groups. Compare each model's bore and length with the cutting-tool dimensions.
AvailabilityConfirm before order
Lead timeQuote based
Product description
The BT SLB series provides side-lock end mill holders for the smaller shank groups listed in the company catalog. BT30, BT40 and BT50 versions have different body diameters and overall lengths. Choose the exact shank bore and machine interface, and check the tool's side-lock geometry before confirming the holder code.
Side-lock connection
The tool shank must suit the holder's retention arrangement; verify the tool drawing.
Length interpretation
Use the table's L dimension as labeled; do not substitute it for a different gauge-length definition.
Make a BT40 side-lock request unambiguous
The BT40-SL6/8-50 row groups the 6 mm and 8 mm bore selections and lists L = 115.4 mm with D values of 25/28 mm. An inquiry should state the single bore needed, such as “BT40-SL6/8-50 catalog row, 8 mm bore requested,” and include the cutting-tool shank drawing for confirmation.
Start an inquiry with this catalog row. The form carries the grouped source row, so add the chosen bore and quantity. Retain the catalog’s SL code as written even though this page is named SLB.
Check the length label before comparing quotations
The code suffix “50” should not replace the table’s L = 115.4 mm in a dimensional check. Compare drawings using the same reference points, including the space available around the holder body. Do not infer a speed or cutting-load rating from these dimensions.
For 25, 32 and 40 mm catalog shank groups, review BT SLA side-lock holders. If separate collets are required, compare BT ER collet holders instead.
Specifications & model range
Dimensions are in millimeters unless otherwise stated. Confirm the final drawing before ordering.
- Interface
- BT30, BT40, BT50
- Shank groups
- 6-20 mm
- Holder style
- Side lock
6 catalog rows
Select an underlined catalog reference to include that row in your inquiry.
| Ordering code | L | D | D1 |
|---|---|---|---|
| BT30-SL6/8/10/12/14-60 | 108.4 | 25/28/35/42/44 | 31.75 |
| BT30-SL16/18/20-75 | 123.4 | 48/50/52 | 31.75 |
| BT40-SL6/8-50 | 115.4 | 25/28 | 44.45 |
| BT40-SL10/12/14/16/18/20-63 | 128.4 | 35/42/44/48/50/52 | 44.45 |
| BT50-SL6/8/10-63 | 164.4 | 25/28/35 | 69.85 |
| BT50-SL12/16/20-80 | 181.8 | 42/48/52 | 69.85 |
No matching model in this table. Try a shorter code, or send your required size or drawing.
Ranges and slash-separated values describe catalog families, not every possible combination. Confirm the complete model and drawing before ordering.
Application scenarios
Typical selection contexts for this series, not customer project claims. Confirm machine compatibility and cutting conditions for your setup.
End milling setups
Selecting side-lock holders for suitable end mill shanks on BT machines.
Dedicated tool stations
Maintaining a holder for a fixed shank size in a repeat production setup.
Replacement holders
Matching an existing BT side-lock assembly by bore, code and external dimensions.
Inspection & order review
Specify the dimensions, tolerances and records your order requires. Acceptance criteria must be agreed for the selected model.
Catalog fields to check
- Ordering code
- L
- D
- D1
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 requirementsPhotos to confirm before dispatch
Use this checklist to agree what should be documented for your selected model.
- BT interface and bore marking checked
- Side-lock screw and mating bore photographed
- Taper and exposed holder body separated in packing
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 specificationsCompare tool-holder connections
Read interface names and ordering codes before choosing a holder.
Read the guideRelated selection information
Browse the existing tooling guides and compare product families before selecting a model.
Browse technical resourcesRelated product series
Compare alternative interfaces and complementary tooling. A related series is not automatically interchangeable.
BT30 / BT40 / BT50
BT ER Collet Holders
Models and specifications
BT-SLA
BT SLA Side Lock End Mill Holders
Models and specifications
YHR01-YHR08
Carbide End Mills
Models and specificationsHow does SLB differ from the SLA page?
This catalog groups SLB around smaller shanks, while the SLA page lists 25, 32 and 40 mm tooling.
Can I clamp an arbitrary round shank?
Confirm the tool's shank and retention geometry with the holder drawing. Diameter alone is not sufficient.
Is L in the table the gauge length?
The source labels that column L. Confirm the dimensional drawing instead of treating it as an interchangeable length definition.
Why do some ordering codes show SL rather than SLB?
The source uses those code forms within the SLB series table. Submit the full source code for drawing confirmation.