HSS Cobalt Spiral Flute Step Drill

• Customized: Customized
• Standard: AISI
• Length: Taper-length
• 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.: EB1100
• Type: Round Shank, 3-Flat Shank, Hex
• Material: Cobalt Steel Alloys
• Usage: Metal Sheet Drilling Hole
• Transport Package: Plywood Case
• Specification: Drawing
• Trademark: EB casting and forging
• Origin: China
• Production Capacity: 400000000 Piece/Pieces Per Year
• Package Size: 50.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 50.000kg

Product Description

HSS Step Drill Bit

Step Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using a single bit. Each step drills does the work of many drill-bit sizes. Drills round holes in most metals (steel, brass, aluminum, copper) up to 1/8" (3.2mm) thick as well as in plastic and wood. No center punching or pilot hole drilling is required on most sizes. The bits are easy to keep sharp, and the hole size is easily determined by the diameter markings that are permanently laser-etched in the flute areas.

FEATURES AT A GLANCE

1. Drills true round holes in stainless steel, mild steel, brass, copper, aluminum, plastic and woods up to 1/8" thick.2.
Stainless steel and aluminum should be drilled at speeds no faster than 300 rpm. Cutting oil must be used to preserve the life of
the cutting tool when exceeding diameters of 1/2" and up
3. Electrical, automotive, plumbing, sheet metal duct work, heating & cooling, pilot holes for knockout punches.

 

Art No.	Diameter Range	Steps	Shank Size
223-001	4 - 12mm	5 step	6mm/6.5mm
223-002	4 - 12mm	9 step	6mm/6.5mm
223-003	4 - 20mm	9 step	8mm
223-004	4 - 22mm	10 step	8mm
223-005	4 - 30mm	14 step	10mm
223-006	4 - 39mm	14 step	10mm
223-007	5 - 35mm	13 step	13mm
223-008	6 - 18mm	7 step	10mm
223-009	6 - 20mm	8 step	10mm
223-010	6 - 24mm	10 step	10mm
223-011	6 - 32mm	8 step	10mm
223-012	14 - 24mm	6 step	13mm
223-013	14 - 25mm	7 step	13mm
223-014	20 - 34mm	8 step	13mm
223-015	10 - 20mm	11 step	10mm
223-016	20 - 30mm	11 step	13mm
223-017	5 - 28.3mm	10 step	10mm
223-018	6 - 30mm	13 step	10mm
223-019	6 - 38mm	12 step	10mm
223-020	6 - 26.75mm	7 step	10mm
223-021	6 - 39mm	12 step	10mm
223-022	6 - 37mm	12 step	10mm
223-023	6 - 32mm	9 step	10mm
223-024	6 - 40mm	16 step	13mm
223-025	4 - 32mm	15 step	10mm

Q: Are you trading company or manufacturer ?
A: We are factory.

Q: How long is your delivery time?
A: Generally it is 5~10 days if the goods are in stock.Or it is 45 days if the goods are not in stock, it is according to
quantity.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shipment. irrevocable LC at sight.