BEYOND SP C40-3D-SD40-SP11 Indexable U-Drill Body | 40mm 3D CNC Boring Drill
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BEYOND SP C40-3D-SD40-SP11
40mm 3D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
Industrial-Grade 40mm Indexable Boring Solution
The BEYOND SP C40-3D-SD40-SP11 is a high-performance indexable insert drill engineered for maximum stability. With a 40mm cutting diameter and a 3D depth ratio (120mm reach), this tool is the primary choice for blind hole machining. Utilizing internal cooling and a precision-engineered spiral flute, it ensures rapid chip evacuation and superior surface finish.
Decoding the Model: SP C40-3D-SD40-SP11
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 40.0 mm | 1.575" |
| Shank Diameter (C) | 40.0 mm | 1.575" |
| Max Drilling Depth (3D) | 120.0 mm | 4.724" |
Recommended Cutting Parameters (40mm 3D)
Suggested for Carbon Steel and Alloy Steel. Use the formula below for your CNC setup:
Rotation Speed (N) = (Vc × 1000) / (π × D)
Where: Vc = Cutting Speed | π ≈ 3.14 | D = 40mm (Drill Diameter)
- Cutting Speed (Vc): 120 - 180 m/min
- Feed Rate (f): 0.08 - 0.16 mm/rev
- Coolant: High-pressure internal cooling is mandatory.
Looking for a compatible side-lock holder for the 40mm shank?
SHOP COMPATIBLE C40 TOOL HOLDERSVerified Customer Feedback
"Solid 40mm Performance"
"Using this for deep blind bores in 1045 steel. Rigid core and no vibration."
- Robert H. (Germany)
"Coolant holes are powerful. No chip jamming issues."
- Marek W. (Poland)
"SPMG11 inserts fit perfectly. Best value on the market."
- Pedro S. (Brazil)
Machinist Tip: SP vs. WC U-Drills
SP Series (Square): Best for Blind Hole (Blind Bores). Flat bottom profile.
WC Series (Trigon): Best for Through Hole applications. More cutting edges.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.