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| Brand Name: | XRTOOLS |
| Model Number: | 4-32 |
| MOQ: | 200PCS |
| Price: | 1.45$/PCS |
| Delivery Time: | 30-45days |
| Payment Terms: | T/T, L/C, D/P |
The XRTOOLS M35 Spiral Step Drill Bit is a premium, high-speed steel tool engineered for multi-diameter hole drilling across a wide range of materials. Crafted from 5% cobalt alloyed HSS (M35) and featuring a precision spiral flute design, this bit offers smoother chip evacuation, less vibration, and longer tool life.
Whether you're drilling stainless steel (304/316), sheet metal, plastic panels, or aluminum plates, this step bit ensures clean, concentric holes with minimal burr. It eliminates the need to switch between multiple drill sizes.
HVAC installers: Drill into ducts, galvanized sheet, control boxes
Electricians: Enlarge knockout holes for conduit fittings
Auto mechanics: Drill chassis holes for sensors or mounts
DIY & workshop: Plastic drilling for models, shelves, electrical work
| Feature | Specification |
|---|---|
| Material | M35 High-Speed Steel (5% cobalt) |
| Flute Design | Spiral / Helical |
| Step Configuration | Multi-step, laser-etched sizes |
| Coating | Optional TiAlN / Black Oxide / Uncoated |
| Step Range | 4–12 mm / 4–20 mm / 4–32 mm (or Imperial) |
| Shank Type | 3-Flat / Hex / Round |
| Tip Geometry | 118° Split Point |
| Compatibility | Hand drills, presses, cordless tools |
1. Spiral Flute → Faster chip removal, quieter operation
2. Cobalt M35 Core → Handles high heat & hard metals
3.No Bit Change Needed → Multiple diameters in one tool
4.Clean Entry → Reduces material deformation or burr
5.Durable Coating → TiAlN for extended service life
Available Packaging
Single drill bit in retail blister card or clear tube
3-piece combo kits (4–12 / 4–20 / 4–32 mm)
OEM bulk packaging for distributors (10/25 pcs per box)
Custom logo & barcode options for private label brands
