High-Speed Steel Spiral Step Drill Bit

• Customized: Non-Customized
• Type: Step Drill Bit
• Material: High Speed Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: ST3
• Usage: Metal Drilling
• Shank Type: Triangular Handle
• Transport Package: plastic box, blister etc.
• Specification: 4-39mm 5-35mm 6-40mm 9-36mm etc
• Trademark: FANXI
• Origin: P. R. China
• HS Code: 82075090
• Production Capacity: 10, 000PCS/Month
• Package Size: 50.00cm * 28.50cm * 24.50cm
• Package Gross Weight: 22.000kg

Product Description

HSS Spiral Grooved Step Drills

The HSS Spiral Grooved Step Drills by Hangzhou Fanxi Tools Co., Ltd. are designed for optimal cutting performance and quiet operation. Made from high-speed steel, these drills are CBN ground and feature spiral flutes, ensuring smooth chip flow and easy removal of long, non-breaking chips. The spiral grooves also protect the cutting edges, reducing the occurrence of built-up edges and cold weld marks. With their cone shape, these drills make it easier to withdraw the tool from the material, saving you time and effort.

Size Range	Step No.	Shank Size
4 - 12mm x 2mm	5	6mm
4 - 12 mm x 1mm	9	6mm
4 - 20mm x 2mm	9	8mm
4 - 22mm x 2mm	10	8/10mm
4 - 30mm x 2mm	14	10mm
4 - 32mm x 2mm	15	10mm
4 - 39mm x 2-3mm	14	10mm
5 - 28mm	7	10mm
5 - 28.3mm	10	10mm
5 - 35mm x 2-3mm	13	13mm
6 - 18mm x 2mm	7	10mm
6 - 20mm x 2mm	8	10mm
6 - 24mm x 2mm	10	10mm
6 - 25mm	7	10mm
6 - 26.75mm	8	10mm
6 - 30mm x 2mm	13	10mm
6 - 30.5mm	10	10mm
6 - 32mm	8	10mm
6 - 32mm	9	10mm
6 - 37mm	12	10mm
6 - 38mm	12	10mm
6 - 40mm	16	13mm
9 - 36mm x 3mm	10	12mm
10 - 20mm x 1mm	11	10mm
12 - 20mm x 1mm	9	10mm
12.5 - 30.5mm	7	12mm
13 - 38mm	10	12mm
14 - 24mm x 2mm	6	13mm
14 - 25mm	7	13mm
20 - 30mm x 1mm	11	13mm
20 - 34mm x 2mm	8	13mm
30 - 40mm x 1mm	11	13mm
40 - 50mm x 1mm	11	13mm
50 - 60mm x 1mm	11	13mm
5 - 30.5mm	13	12mm
5 - 38mm	14	12mm