BT30 M8x1.25 1" Screw-In Threaded Tool Holder
SKU
202-6926
$82.00
In stock
Shipping UPS Ground
Details
| Mfg SKU # | 202-6926 |
|---|---|
| Tool Holder Category | Screw-In Threaded Holder |
| Brand | Tegara |
| shank size | BT30 |
| Cutting Head Connection Thread Pitch M | M8 x 1.25 |
| Internal Thread Depth | 20mm |
| Pilot Diameter | 8.5mm |
| Pilot Depth | 7mm |
| projection length | 1 |
| max rpm balanced to | G2.5 20000 |
| TIR (inch) | 0.0001 |
| drawbar thread size | M12x1.75 |
| Nose Diameter | 0.605 |
| Dual Contact Tool Holder | No |
Design
Start to Finish
We optimize our process for both efficiency and accuracy by utilizing Kawasaki robotic arms to load and unload bar stock into the Mazak multi-tasking machine centers. We use SCM420 alloy steel to lay the foundation and case harden to RC 57-59 with a core of RC 34-39 to provide good core strength and maximize wear life. The core creates a dampening effect which reduces vibration in high speed milling to improve surface finish. The AT3 or better taper accuracy ensures 80% or better taper contact with spindle and using Stotz Air/Electronic Gaging for inspection on the taper. We precision grind the internal bore surface to < .0002 " TIR and all bores are ground on a CNC grinder to ensure close run-out tolerance and evenly contact between the collet and the bore pocket. We use Haimer laser balancing machines to deliver a tool that can operate flawlessly at 20000 RPM and Mitutoyo or Mahr indicators to check the run out.
Craftmanship
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Mirror Finished
Taper ground to AT3 or better specification ensures 80% or more contact with spindle to reduce harmonics and improve runout tolerance
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Pilot Contact
Inside bore are precision ground to engage a better contact with indexable cutter's pilot to increase rigidity
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Taper End Face
Precision turning surface finish provide perpendicular contact with the flange of retention knob to increase rigidity
Tech Specification
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Taper Size
BT30
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Internal Thread Pitch
M8 x 1.25
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Internal Thread Depth
20mm
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Pilot Diameter
8.5mm
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Pilot Depth
7mm
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Nose Diameter
0.605
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Coolant Type
Thru Spindle
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Runout
.0001" from taper to pilot bore
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Max Balanced To
G2.5 20,000 RPM
Spotlight
- This tool holder accepts all threaded screw-in indexable mililng cutter which are often called modular indexable tooling, screw in or threaded shank cutter
- Precision ground flat on the shoulder and internal pilot diameter that will self center the threaded indexable cutter
- By accepting right-hand thread cutter into the tool holder, apply cutting force onto the cutter would increase the bond between the cutter and the tool holder
- Runout is less than .0001" from taper to pilot bore
- Made from alloy steel hardened to 54-60 HRc
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