Internal Square Profile Machining
Square Rotary Broaches
Made-to-order square rotary broaches for producing internal square drive profiles on Swiss-type lathes and CNC lathes. Reference sizes cover nominal 1.0–10.0 mm square profiles, using an Ø8 mm shank and 30 mm overall length. ASP23 powder-metallurgy high-speed steel is available for precision machining applications.
Reference Dimensions
Square Rotary Broach Dimensions & Sizes
Reference configurations: Ø8 mm shank, 30 mm overall length. All dimensions are in millimetres. Actual AF values are shown in the table.
Nominal square sizes 1.0–10.0 mm. The AF column shows reference manufactured broach dimensions, which differ slightly from the nominal size. All sizes are subject to production confirmation.
| Order No. | AF | d1 | ØD | OAL |
|---|---|---|---|---|
| SQ-1.0-D8-30L | 1.04 | 1.5 | 8 | 30 |
| SQ-1.5-D8-30L | 1.55 | 2.5 | 8 | 30 |
| SQ-2.0-D8-30L | 2.06 | 3.0 | 8 | 30 |
| SQ-2.5-D8-30L | 2.57 | 4.0 | 8 | 30 |
| SQ-3.0-D8-30L | 3.07 | 4.5 | 8 | 30 |
| SQ-3.5-D8-30L | 3.58 | 5.0 | 8 | 30 |
| SQ-4.0-D8-30L | 4.09 | 6.0 | 8 | 30 |
| SQ-4.5-D8-30L | 4.57 | 7.0 | 8 | 30 |
| SQ-5.0-D8-30L | 5.08 | 7.5 | 8 | 30 |
| SQ-6.0-D8-30L | 6.10 | 9.0 | 8 | 30 |
| SQ-8.0-D8-30L | 8.13 | 12.0 | 8 | 30 |
| SQ-10.0-D8-30L | 10.14 | 15.0 | 8 | 30 |
Important size note: The order number indicates the nominal square size, while AF represents the reference cutting-profile dimension. Do not treat the listed AF as a guaranteed finished-hole dimension. Confirm the required finished square size, fit, corner geometry and tolerance before manufacturing. Non-stock or modified sizes are made to order.
Custom Manufacturing
Non-Stock Square Broaches — Made to Order
Beyond the reference sizes, PRONIXT can evaluate special square profiles and non-standard broaching tools according to your technical drawing and application.
What Can Be Customized?
Square AF size, profile length, shank dimensions, cutting geometry, material and coating can be reviewed according to the part drawing, machining conditions and production requirements.
Before Production
- Confirm finished square size, tolerance and corner requirements
- Confirm broaching depth, hole type and workpiece material
- Check holder fit, shank requirements and application feasibility
- Confirm quantity, quotation and manufacturing lead time
Material & Precision
ASP23 PM-HSS for Internal Square Broaching
ASP23 Powder-Metallurgy HSS
ASP23 offers a fine and uniform microstructure, balancing wear resistance and toughness in repeated cutting. Material selection, geometry and heat treatment for non-stock square tools are confirmed during the technical review.
Learn more about ASP23 →Confirm on quotation
Subject to confirmation
For reference version
Quote Preparation
Information Required Before Ordering
Square rotary broaches are reviewed according to the required finished profile and machining conditions. Please provide the following details for a quotation.
Finished Square Size
Provide the required across-flats dimension, tolerance and corner specifications.
Broaching Depth
State the required profile depth and whether the hole is blind or through.
Workpiece Material
Include material grade, hardness and heat-treatment condition, if known.
Machine & Holder
Share the CNC machine model, holder type and any shank restrictions.
Drawing & Quantity
Send the part drawing or sample, required quantity and target delivery date.
Technical Questions
Square Rotary Broach FAQ
Are the listed square rotary broaches in stock?
No stock availability is implied by this reference table. Square rotary broaches are offered on a made-to-order basis; please confirm production details, lead time and price before ordering.
Can PRONIXT produce non-stock square sizes?
Yes. Special AF sizes, profile lengths and shank dimensions can be evaluated and manufactured according to a confirmed technical drawing and the machining application.
How should the pilot hole be prepared?
The pilot-hole diameter, extra depth and lead chamfer depend on the required square size, broaching depth and workpiece material. Final preparation details are confirmed during technical review.
Is ±0.01 mm guaranteed on the machined square hole?
No. The quoted tool dimensional tolerance and the finished-part accuracy are different. Actual results depend on the machine, broaching holder, workpiece material and cutting conditions.
Related Resources
Rotary Broaching Information
Need a Made-to-Order Square Rotary Broach?
Send us your required finished square size, tolerance, broaching depth, material, machine model and quantity. A drawing or sample will help us confirm manufacturing feasibility, pricing and lead time for non-stock or custom sizes.