Step Drill HSS-E55 (Cobalt 5%) -Tialn Coated-3-Flat Shank

• Customized: Customized
• Standard: DIN, JIS, AISI, API
• Length: Jobber-length
• Type: Twist Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Model NO.: CNTN00003
• Shank: Round with 3 Flat
• Product Package: Box
• Delivery: 30~45 Days
• Transport Package: Carton
• Trademark: YOUR BRAND
• Origin: China
• HS Code: 8207509000
• Production Capacity: 1000000 Pieces/Year

Product Description

High-performance drill for high-speed, heavy-duty drilling of high-strength and stainless steel sheets.
TiAlN coating increases tool life and reduces cutting forces.

Properties and benefits:

1.Cross-point sharpening:
   thinning of the tip of the drill.
   Allows easy self-centering of the drill bit on the smoothest surfaces.
   Greatly reduces the axial effort required.

2.TiAlN coating:
   TiAlN base, thickness 2/4μm, hardness 3000HV, friction coef 0.4, hot hold 900°C.
   Protects against abrasion, oxidation, adhesion.
   Increases service life.
   Reduces cutting forces with cutting edge protection and Better chip slip.
   Versatile uses.

3.3-flat tail:
   cylindrical tail with 3 120° flats for 3-bit drill chuck.
   Allows maximum transmission of the couple.
   Avoids the rotation of the drill bit in the mandrel.
   Specially suitable for unlocking holes.

4.High-speed steel 5% Cobalt:
   HSS substrate enriched with 5% Cobalt.
   Better heat resistance (toughness, cutting acuity).

Technical Specifications:

 

Drill Diameter	Drill Diameter  d3	Handle Diameter or CM	Total Length	Trimmed Length
12	4	6	65	42
20	4	8	75	52
30	4	10	100	77
37	4	10	100	77

Features:

 

Application:

 

Widely Uesd:

 

Related Surface Treatment:

 

                                                                                                                          
                                                                                                                                                                                                                                                                                                                                                                  

Related Packaging: