Counterbores with Straight Shank and Fixed Pilot

• Customization: Available
• Application: Drilling Machine
• Standard: Standard
• Coating: Uncoated
• Material: High Speed Steel
• Size: M3 to M24
• Standards: HRC63
• Style: Universal Tool
• Structure: Integral
• Cutting Process: Drilling Tools
• Transport Package: Plastic Box
• Specification: size M3 to M24
• Trademark: stc
• Origin: Jiangsu
• HS Code: 82075090
• Production Capacity: 10000PCS/Month

Product Description

Material: Efficient high-speed steel HSS M2.

Hardness: 63 HRC.

Workmanship 4 cutting blades in right hand spiral.

Milled flute and ground flute both available.

Kinds of sets available.

Kinds of coating available.

HSS Co5 (M35) available on request.

size	pilot	cutter	shank	overall
	dia	dia	dia	length
M3	3.2	6	5	71
M3	3.4	6	5	71
M3.5	3.7	6.5	5	71
M4	4.3	8	5	71
M4	4.5	8	5	71
M4.5	4.8	8	8	71
M5	5.3	10	8	80
M5	5.5	10	8	80
M6	6.4	11	8	80
M6	6.6	11	8	80
M8	8.4	15	12.5	100
M8	9	15	12.5	100
M10	10.5	18	12.5	100
M10	11	18	12.5	100
M12	13	20	12.5	100
M12	13.5	20	12.5	100
M14	15	24	12.5	100
M14	16	24	12.5	100
M16	17	26	12.5	100
M16	18	26	12.5	100
M18	19	30	12.5	100
M20	21	33	12.5	125
M20	22	33	12.5	125
M24	25.4	40	16	254