Choose Hex Broach Shank Size

1/2 Shank

View our large selection of .500 inch shank diameter hex rotary broach sizes.
Size Range .081 to .750

1/2 IN. SHANK DIAMETER

Order Hexagon Rotary Broach with 1/2 in. shank diameter x 1.75 inch length.

8mm Shank

View our large selection of 8mm shank diameter hex rotary broach sizes.
Size Range .050 to .410

8MM ROTARY BROACHES

Order Hexagon Rotary Broach with 8mm shank diameter x 1.25 inch length

Micro Broaches

8mm shank diameter x 28mm overall length hex micro rotary broach sizes.
Size Range .050 to .240

8MM X 28MM

Order Hexagon Rotary Broach with 8mm shank diameter x 28mm length.

Do you need to make a precision hexagon (hex) form in the end of a metal shaft or fastener?

Of the many ways to accomplish such a task, rotary broaching is no doubt the most popular, most efficient and most cost effective. Best of all, hexagon rotary broaching tools work on almost all turning machines.

The hexagon is an ideal form for fastener drivers. Multiple points of contact provide driving strength without sacrificing the integrity of the fastener. Many of our customers use hex broaches for manufacturing everything from bone screws to door hardware.

Using the hex broach is not difficult, but a few key points should be kept in mind. Rotary broaching does require the use of a chamfer. The chamfer helps the broach to stay on center, and is also the point where the chip begins to curl up at the face of the broach.

An oversize pilot hole is also an important key for rotary broaching. For hexagons, we recommend a minimum 3% oversize pilot hole, which will leave a small radius in the middle of the flat. This small amount of material is acceptable in the ASME standard for hexagon sockets. Pilot hole diameters closer to the flat-to-flat dimension of the broach can be used, but may affect tool life.

Finally, there must be room for the chips to accumulate in the bottom of the hole. If the pilot hole is a through hole, then generally this is not a concern. However, if it is a blind hole, consideration must be given to provide clearance for chip accumulation inside the hole. Drilling the pilot hole 50% deeper than the broaching depth is a rule of thumb for determining final pilot hole depth.

Polygon Solutions is pleased to provide a wide variety of standard inch and metric hex sizes suitable for rotary broaching. Most broaches are available for immediate delivery from our Fort Myers, FL facility. Polygon also offers fast delivery on custom and special order hex broaches.

Our Hex Rotary Broaches can be ordered in custom dimensions. Can’t find the size you’re looking for? Polygon Solutions provides fast delivery on custom ½” or 8mm shank hexagon rotary broaches. Simply specify the desired across flat dimension when ordering. Polygon’s manufacturing tolerance is +0/-.0005”. For example, a custom hex broach with 0.1234” across flat dimension is part number H01234B.

 

Hexagon (Hex) Go/NoGo Gages

Hexagon Broach Gages can be used with Polygon’s standard ASME broaches to make sure that the size of the hexagon hole has been machined properly. Unlike rotary broaches, hex broach Gages have no taper. Our Hexagon Gages are held to tight tolerances and can be made to custom shapes and sizes. We also offer external hexagon go / nogo gages.

Polygon’s hex broach Gages are made as GO and NOGO pairs. Each gage is designed to be held by hand and inserted into the hexagon hole. If the NOGO Gage fits, then the hole is too large and the part fails inspection. If the GO Gage fits, then the hole is the right size and the part will pass inspection. If the hole was too small the GO Gage would not have fit inside.

Hex Gages can also help to determine if there is too much twist in the form, a common troubleshooting feature of holes manufactured using the rotary broaching process. Our Hexagon Broach Gages are made of durable hardened M-2 tool steel. All Gages come with handles featuring green caps on the GO Gage side and red caps on the NOGO side.

** GO and NOGO hex Gages can easily be customized. Call us with your dimensions at 239-628-4800. Custom hex Gage delivery requires 2-3 days for manufacturing.

Gage Tolerances Conform to ANSI B18.3

Square Go/NoGo Gages

Square Broach gages (or gauges) can be used to make sure that the size of the square hole has been machined properly. Unlike rotary broaches, square broach gages have no taper. Our square gages are held to tight tolerances and can be made to custom shapes and sizes.

Polygon’s square broach gages are made as GO and NOGO pairs. Each gauge is designed to be held by hand and inserted into the square hole. If the NOGO gage fits, then the hole is too large and the part fails inspection. If the GO gage fits, then the hole is the right size and the part will pass inspection. If the hole was too small the GO gage would not have fit inside.

Square Gages can also help to determine if there is too much twist in the form, a common troubleshooting feature of holes manufactured using the rotary broaching process. Our Square Broach gages are made of durable hardened M-2 tool steel. All gages come with handles featuring green caps on the GO gage side and red caps on the NOGO side. Gage Tolerances are +0/-.0002.

Hexalobular Go/NoGo Gages

Hexalobular Broach gages can be used to make sure that the size of the 6-lobed (hexalobular) hole has been machined properly. Unlike rotary broaches, hexalobular broach gages have no taper. Our gages are held to tight tolerances and can be made to custom shapes and sizes. We also offer internal and external hexalobular Go / NoGo Gages.

Polygon’s broach gages are made as GO and NOGO pairs. Each gage is designed to be held by hand and inserted into the hexalobular (6-lobed) hole. If the NOGO gage fits, then the hole is too large and the part fails inspection. If the GO gage fits, then the hole is the right size and the part will pass inspection. If the hole was too small the GO gage would not have fit inside.

Hexalobular Gages can also help to determine if there is too much twist in the form, a common troubleshooting feature of holes manufactured using the rotary broaching process. Our Hexalobular Broach gages are made of durable hardened M-2 tool steel. All gages come with handles featuring green caps on the GO gage side and red caps on the NOGO side.

Major and Minor Diameters Per ISO 10664 and Include Long Form Certification of Calibration.

T-40 Torx GO and NOGO Gage Set

 

Polygon Solutions’ T-40 Torx (Hexalobular) Gages are manufactured to ISO 10664 Standards.

T40 Gage Set includes:

 

• T-40 Torx Go Gage
• T-40 Torx NoGo Gage
• NoGo Plug Gage for Checking Minor Diameter
• Handle Assembly
• Long Form NIST Compliance Certification

 

 

** GO and NOGO Torx gages can easily be customized. Call us with your dimensions at 239-628-4800.

Gauge Tolerances Conforms to ISO 10664

T-40 Torx GO and NOGO Gage Set

T-40 Torx GO and NOGO Gage Set

T-40 Torx GO and NOGO Gage Set

T-40 Torx GO and NOGO Gage Set

T-40 Torx GO and NOGO Gage Set