BEYOND SP C32-2D-SD33-SP09 Indexable U-Drill Body | 33mm 2D CNC Boring Drill
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BEYOND SP C32-2D-SD33-SP09
33mm 2D Heavy-Duty U-Drill | Precision Blind Hole Boring Specialist
High-Performance 33mm Indexable Boring Solution
The BEYOND SP C32-2D-SD33-SP09 is a high-performance indexable insert drill engineered for large-diameter CNC boring and efficient metal removal. With a 33mm cutting diameter and a 2D depth ratio (66mm reach), this tool is the professional choice for blind hole machining. Featuring internal cooling and a precision-engineered spiral flute, it ensures rapid chip evacuation and superior surface finish in steel, alloys, and stainless steel.
Decoding the Model: SP C32-2D-SD33-SP09
Metric & Imperial Technical Specifications
| Feature | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Drilling Diameter (SD) | 33.0 mm | 1.299" |
| Shank Diameter (C) | 32.0 mm | 1.259" |
| Max Drilling Depth (2D) | 66.0 mm | 2.598" |
| Equivalent Model | SP-C1.25-2D-SD1.29-SP09 | |
Premium 20CrMnTi Alloy & High-Efficiency Flute Geometry
Industrial Build: This indexable drill body is forged from high-quality 20CrMnTi alloy steel and vacuum quenched (HRC 52-55). This core rigidity is essential for large diameter drilling stability and preventing tool deflection during heavy-duty cycles. The surface is treated with a Black Oxide finish for superior thermal protection during rapid hole boring.
Optimized Chip Management: The U-drill features an enlarged spiral flute (U-groove) specifically engineered to evacuate the high volume of chips produced by a 33mm bore. The internal cooling holes ensure that coolant reaches the cutting edge directly, flushing chips away instantly—a critical factor for successful blind hole machining.
Recommended Cutting Parameters (33mm 2D)
Optimal settings for General Steel. Adjust based on CNC rigidity and material grade:
Rotation Speed (N) = (Vc × 1000) / (π × 33)
- Cutting Speed (Vc): 100 - 180 m/min
- Feed Rate (f): 0.08 - 0.18 mm/rev
- Coolant: High-pressure internal cooling is mandatory.
Maximize precision with our high-rigidity BEYOND Side-Lock C32 Holder:
SHOP COMPATIBLE C32 TOOL HOLDERSVerified Customer Feedback
"Highly Recommended"
"I'm using this for 33mm blind holes in alloy steel. The flat bottom geometry is perfect for my needs."
- David K. (USA)
"Top quality from Beyond. The internal coolant ports are aligned perfectly with the flutes."
- Marek W. (Poland)
"Fits SPMG09 inserts perfectly. Robust tool for high production runs."
- Pedro S. (Brazil)
"Fast shipping. Tooling is professional grade."
- Arthur L. (UK)
"Impressive stability."
- Kenji S. (Japan)
SP Series Indexable Drill: Advantages & Considerations
- Uses 4-edge SPMG square inserts for better cost economy.
- Dedicated to Blind Hole Machining (Creates a flatter hole bottom).
- Stronger body core design reduces vibration in 33mm applications.
- Higher power consumption than smaller drills.
- Performance drops significantly without high coolant pressure.
Technical Q&A
Q: Why should I choose the SP series over WC for this size?
A: The SP series uses square inserts which are much better suited for blind hole machining because they create a flatter bottom and the tool body itself is more rigid for large-diameter CNC boring.
Q: Is this tool body compatible with other insert brands?
A: It is standard-spec for SPMG090408 carbide inserts. While many brands fit, we recommend BEYOND inserts for the best performance.
Q: What is the maximum depth for this 2D drill?
A: The 2D indicates 2x the diameter. For a 33mm drill, the maximum effective drilling depth is 66mm.
Machinist Tip: SP vs. WC U-Drills
SP Series (Square): The professional choice for Blind Hole (Blind Bores). Square inserts create a flatter bottom and offer maximum core strength.
WC Series (Trigon): Primarily used for Through Hole applications. WC inserts offer more cutting edges but the body core is thinner, making it less rigid for 33mm boring tasks.