Description
YG-1 T4663C Combo Tap TiCN HSS-EX Spiral Point 5/8-18 UNF H3
L. Dewitt's SKU #: T4663C | Mfr Part #: T4663CYG-1 Combo Tap products are built for practical multi-purpose threading in ductile materials. YG-1 T4663C Combo Tap TiCN HSS-EX Spiral Point 5/8-18 UNF H3 helps shops solve chip packing, overfeeding or underfeeding, tap wear, oversized threads, and inconsistent through-hole production with optimized flank geometry, smoother chip evacuation, and reliable thread quality for through-hole chip movement.
- CNC machinists and programmers matching tap style, thread size, coating, material, hole type, and chip direction to the job.
- Production teams reducing tap wear, thread rejects, overfeeding, underfeeding, and downtime.
- Tool crib and purchasing teams standardizing YG-1 EDP numbers for repeatable replacement workflows.
- Job shops and MRO buyers covering steels, stainless steels, cast iron, aluminum, copper alloys, and everyday repair work.
T4663C: YG-1 T4663C Combo Tap TiCN HSS-EX Spiral Point 5/8-18 UNF H3 is a YG-1 TiCN Spiral Point Individual Tap for through-hole tapping where chips need to be driven forward for smoother evacuation and repeatable thread quality. Use this model when setup clarity, chip control, and consistent thread quality matter.
Why This Model
Choose this model when the operation calls for through-hole tapping where chips need to be driven forward for smoother evacuation and repeatable thread quality. Combo Tap geometry is designed to help prevent overfeeding and underfeeding while supporting smoother tapping and more predictable thread finish.
Technical Specifications
| Brand | YG-1 |
| Product Family | Combo Tap |
| Product Group | Combo Tap Spiral Point |
| Tool Type | HSS-EX tap |
| Tool Style | TiCN Spiral Point Individual Tap |
| Product Format | Individual Tap |
| Application | through-hole tapping where chips need to be driven forward for smoother evacuation and repeatable thread quality |
| Coating | TiCN |
| Substrate | HSS-EX |
| Manufacturer Part Number | T4663C |
| Measurement System | Inch |
| Package Unit | 1 |
| Series | T |
| Thread Size | 5/8-18 |
| Threads Per Inch | 18 |
| Thread Designation | UNF |
| Pitch Limit | H3 |
| Tool Material | HSS-EX |
| Flute Style | Spiral Point |
| Flutes | 3 |
| Thread Angle | 60 degrees |
| Chamfer Lead | 4P-5P |
| Coolant Style | Without Coolant |
| Hole Type | Through Hole up to 3xD |
| Application Material | Multi-Purpose |
| Overall Length | 96.8 mm |
| Size | 5/8-18UNF H3 96.8L |
What This Solves
- More reliable chip behavior. The selected spiral flute, spiral point, kit, or set format supports the chip-control path needed for the operation.
- Less thread variation. Optimized flank geometry helps reduce overfeeding, underfeeding, and oversized-thread problems.
- Faster replacement matching. EDP, thread size, pitch limit, coating, substrate, coolant style, and hole type are grouped for easier purchasing decisions.
- Results after use. Correct selection supports smoother chip evacuation, steadier tapping force, longer tool life, and more consistent through-hole threads.
Common Applications
- Through-hole CNC tapping where chips need to move forward out of the cut
- Multi-purpose threading in steels, stainless steels, cast iron, aluminum, copper alloys, and other ductile materials
- Production tapping, job-shop work, tool-room replacement, and maintenance repair operations
- Replacement matching by SKU, thread size, pitch or TPI, pitch limit, coating, and coolant requirement
Quick Answer
YG-1 T4663C Combo Tap TiCN HSS-EX Spiral Point 5/8-18 UNF H3 is a YG-1 Combo Tap product used for through-hole tapping where chips need to be driven forward for smoother evacuation and repeatable thread quality. It supports smoother chip evacuation, steadier tapping force, longer tool life, and more consistent through-hole threads.
- Product Family: Combo Tap
- Product Group: Combo Tap Spiral Point
- Tool Type: HSS-EX tap
- Tool Style: TiCN Spiral Point Individual Tap
- Product Format: Individual Tap
- Coating: TiCN
- Substrate: HSS-EX
- Manufacturer Part Number: T4663C
- Thread Size: 5/8-18
- Threads Per Inch: 18
- Thread Designation: UNF
- Pitch Limit: H3
- Tool Material: HSS-EX
- Flute Style: Spiral Point
- Flutes: 3
- Chamfer Lead: 4P-5P
- Coolant Style: Without Coolant
- Hole Type: Through Hole up to 3xD
- Overall Length: 96.8 mm
- Availability: In Stock - Estimated Delivery in 3-5 Business Days
Common Questions
What is the YG-1 T4663C?
T4663C is a YG-1 Combo Tap product for multi-purpose threading where chip evacuation, tool life, and thread quality need to be controlled.
Where should this Combo Tap be used?
Use this model for through-hole tapping where chips need to be driven forward for smoother evacuation and repeatable thread quality. Confirm whether the application is blind-hole, through-hole, kit-based, or set-based before ordering.
What makes Combo Tap useful?
Combo Tap geometry is designed to provide smooth chip evacuation, reduce overfeeding and underfeeding, and keep thread quality more consistent in less-than-perfect production conditions.
How do I confirm the correct replacement?
Match EDP T4663C, thread size, pitch or TPI, pitch limit, coating, substrate, coolant style, tap drill size, work material, holder alignment, and tapping speed before ordering.
Image reference: YG-1 Combo Tap product T4663C.
Need Help Matching a Combo Tap?
Send us the EDP, thread size, pitch limit, coating, hole type, coolant requirement, and work material. L. Dewitt McCarter, Inc. can help verify the correct YG-1 Combo Tap for your application.
Contact Our Technical TeamAdditional Information
Manufacturer: |
YG-1 |
Manufacturer Part Number: |
T4663C |
Product Family: |
Combo Tap |
Product Group: |
Combo Tap Spiral Point |
Tool Category: |
Combo Tap |
Application Family: |
through-hole tapping where chips need to be driven forward for smoother evacuation and repeatable thread quality |
Tool Type: |
HSS-EX tap |
Tool Style: |
TiCN Spiral Point Individual Tap |
Package Unit: |
1 |
Measurement System: |
Inch |
Thread Size: |
5/8-18 |
Threads Per Inch: |
18 |
Thread Designation: |
UNF |
Pitch Limit: |
H3 |
Overall Length: |
96.8 mm |
Series: |
T |
Size: |
5/8-18UNF H3 96.8L |
Tool Family: |
Spiral Point |
Tool Material: |
HSS-EX |
Thread Angle: |
60 degrees |
Flute Style: |
Spiral Point |
Hole Type: |
Through Hole up to 3xD |
Application Material: |
Multi-Purpose |
Flutes: |
3 |
Coolant Style: |
Without Coolant |
Chamfer Lead: |
4P-5P |
Product Format: |
Individual Tap |
