BEYOND SP C32-5D-SD29-SP09 Indexable U-Drill | 29mm 5D CNC Deep Hole Drill Body
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BEYOND SP C32-5D-SD29-SP09
29mm 5D Indexable U-Drill | High-Precision Blind Hole Boring Specialist
Industrial Performance 29mm Deep Hole U-Drill
The BEYOND SP C32-5D-SD29-SP09 is a high-rigidity indexable insert drill engineered for demanding metalworking. Featuring a 29mm cutting diameter and a 5D depth ratio, this tool is the professional choice for blind hole boring on CNC lathes. Its advanced internal cooling system and spiral flute design ensure high-speed efficiency and superior chip evacuation in deep hole drilling applications.
Model Identification Guide
Technical Data & Size Conversion
| Specification | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 29.0 mm | 1.141" |
| Shank Diameter (C) | 32.0 mm | 1.259" |
| Max Drilling Depth (5D) | 145.0 mm | 5.708" |
| Imperial Model Ref. | SP-C32-5D-SD29 | SP-1.25-5D-1.141 |
Premium 20CrMnTi Alloy & U-Groove Geometry
Advanced Body Material: This indexable drill body is crafted from high-performance 20CrMnTi alloy steel. Through vacuum quenching, the surface hardness reaches HRC 50-55, while maintaining a shock-resistant core to withstand interrupted cuts and high torque during shallow hole drilling or deep boring.
Optimized Spiral Flute: The spiral flute (U-groove) is designed with an enlarged chip space. Combined with internal cooling holes, it effectively flushes metal chips out of the 145mm deep hole, preventing chip clogging and heat buildup that can damage your carbide inserts.
Recommended Cutting Parameters (5D 29mm)
Baseline for Carbon Steel (HB < 250). High-pressure internal cooling is mandatory:
- Cutting Speed (Vc): 110 - 160 m/min
- Feed Rate (f): 0.08 - 0.14 mm/rev
- Rotation Speed (N): Calculated as $$N = \frac{Vc \times 1000}{\pi \times 29}$$
SP Series U-Drill Pros & Cons
- Uses 4-edge SPMG square inserts for maximum economy.
- Exceptional stability for blind hole machining.
- Higher core rigidity compared to WC trigon types.
- Higher machine torque requirement for 29mm diameters.
- Strict reliance on stable internal coolant flow.
Verified Customer Feedback
"Solid Deep Boring"
"Rigidity is key at 5D, and BEYOND delivers. The 29mm diameter stays true without deflection."
- Robert H. (USA)"Perfect Blind Holes"
"The SP series is much better for blind bores than WC. Flatter bottom and more stable."
- Klaus M. (Germany)"Impressive quality"
- Kenji Y. (Japan)
"Fast chip evacuation"
- Marc L. (France)
"Great 5D reach for the price"
- Liam G. (UK)
Technical Q&A
Q: Why is the SP series recommended for blind holes?
A: SP inserts have a square geometry that creates a flatter bottom surface and offers higher body rigidity, which is essential when the tool isn't exiting the material.
Q: Is a pilot hole necessary for 29mm 5D?
A: For 5D depths, starting with a short 2D U-drill pilot hole significantly improves the straightness and lifespan of the 5D tool.
Q: Does this work with any SPMG09 insert?
A: Yes, it is compatible with all standard SPMG090408 inserts.
Technical Tip: SP vs. WC U-Drills
SP Series (Square): The professional choice for Blind Hole (Blind Bores). The square insert geometry provides a flatter hole bottom. Superior rigidity for Deep Hole (5D) drilling.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts offer more cutting edges but the tool body core is thinner, making it slightly less rigid than SP for extreme depths.
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.