3pcs HSS Titanium Plating Umbrella Drill Bit Umbrella Chamfer Chamfering Cutter Step Drill Bit Set

Discription of Step Drill Bits:

• 3pcs 16-30.5/5-20/3-14mm HSS 6542 Umbrella Chamfering Cutter Step Drill Bit Set
• size:16-30.5mm/0.62"-1.2",10mm Handle Dia. 2.6-20mm/0.1"-0.79", 8mm Handle Dia.3.3-14mm/0.13"-0.55", 6mm Handle Dia.
• Unique umbrella structure, a drill can open a variety of sizes aperture.
• Using 4241# high speed steel, easy drilling, high hardness, sharp edge, good cutting effect.
• Deburring, chamfering and round hole reaming are done at one time with little shaking

Features of Step Drill Bit:

- Unique umbrella structure, a drill can open a variety of sizes aperture.
- Does not require the use of a center punch, and is less likely to break than a regular twist drill.
- Deburring, chamfering and round hole reaming are done at one time with little shaking.
- Using 4241# high speed steel, easy drilling, high hardness, sharp edge, good cutting effect.
- Gold titanium plating process is not fade, not easy to scratch.

Specification:
1. MaterialHigh-speed steel 4241
2. Style:Taper Umbrella
3. Color:Gold
4. Shank Size:6mm; 8mm;10mm
5. Type:1.16-30.5mm/0.62"-1.2",10mm Handle Dia.
2.6-20mm/0.1"-0.79", 8mm Handle Dia.
3.3-14mm/0.13"-0.55", 6mm Handle Dia.

Package Included:
3pcs Umbrella chamfer chamfering cutter

Package And Delivery:

1. Normal Package:5/10 pcs in a plastic bag,then inner box and out carton.

2. Other package:Blister card,Plastic tube,PVC pouch,according to your requirments.

3. HSS Drill bits set are available.

4. Samples or small order will be delivered by courier,DHL,FEDEX,TNT,etc

5. Normal order will be delivered by sea.

6. About 20-30days after your deposite,according to your order quantity.

Q1: How to deliver the goods?

Deliver By sea,By air,By express.