Zero Flute HSS Countersink Counterbore

• Standard: DIN, JIS, AISI
• Length: Jobber-length
• Type: Countersink Drill Bit
• Material: High Carbon Steel
• Usage: Metal Drilling
• Size: 2-25mm
• Model NO.: metric and inch
• Standards: 63 HRC
• Style: Universal Tool
• Structure: Integral
• Cutting Process: Countersin
• Transport Package: Plastic Box
• Specification: metric and inch
• Trademark: stc
• Origin: Jiangsu
• HS Code: 82075090
• Production Capacity: 1000PCS/Month

Product Description

The zero-flute design has a single flute through the center of the tip, rather than spiraled around the tip, for reduced vibration and a smooth finish in lightweight metals like aluminum and plastic. It is often used for deburring applications.

Cobalt steel(available on request) maintains the tool's toughness and hardness in high drilling temperatures. The uncoated finish has no additional surface treatment or coating. The tool has a single cutting end and a round shank that accommodates most drill chucks.

Sets available on request.

Metric and inch size both available.

Included Angle: 90°. Material: HSS, HSS-E
Cutting Range	Shank Diameter	Overall Length		Cutting Range	Shank Diameter	Overall Length
2 - 5	6	45		25 - 30	15	115
5 - 10	6	50		30 - 35	15	125
10 - 15	10	65		35 - 40	18	135
15 - 20	12	85		40 - 50	18	165
20 - 25	15	105
Taper Shank Countersinks & Deburring tools Available also.