Double Flute Straight Groove Titanium Coated Step Drill Bit Set

• Customized: Non-Customized
• Length: Taper-length
• Type: Center Drill Bit
• 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.: 01-1
• Material: High Speed Steel
• Usage: Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling
• Application: Make Hole
• Shank: 3-Sided Shank
• Flute Type: Straight Flutes
• Finish: Titanium
• Transport Package: Aluminum Case
• Specification: 5PCS( Center Punch And Drill Bit )
• Trademark: Cuttingcraft
• Origin: Jiangsu, China
• HS Code: 82075090
• Production Capacity: 500000
• Package Size: 15.00cm * 10.00cm * 4.00cm
• Package Gross Weight: 0.500kg

Product Description

Product Description

The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating.

Increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily.

Equipped with a well-organized case, make it more convenient for using and storing the step drills.

H.S.S	Grade	Chemical Compisition(%)
HSS	4241	W:1.50-2.50; Mo:0.60-1.20; Cr:3.80-4.40; V:0.50-0.70	60-61.5HRC
	4341	W:3.50-4.50; Mo:2.50-3.50; Cr:3.80-4.40; V:1.20-1.80	61-63HRC
	9341	W:8.50-9.50; Mo:2.70--3.30; Cr:3.80-4.40; V:1.30-1.70	63-66HRC
	6542(M2)	W:5.50-6.75; Mo:4.50-5.50; Cr:3.80-4.40; V:1.75-2.20
HSS Co5	M35	W:.6.00-6.70; Mo:4.70-5.20; Cr:3.80-4.50; V:1.70-2.00; Co:4.50-5.50	66-68HRC
HSS Co8	M42	W:.1.15-1.85; Mo:9.00-10.00; Cr:3.50-4.25; V:0.95-1.35; Co:7.75-8.75	66-68HRC

 

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