Solid Carbide Twist Drill Bits GOST 17274

• Customized: Customized
• Standard: DIN, JIS, AISI
• Length: Jobber-length
• Type: Twist Drill Bit
• Material: Tungsten Carbide
• Usage: Metal Drilling
• Model NO.: metric
• Size: 3mm to 12mm
• Transport Package: Plastic Box
• Specification: 0.3mm to 20mm
• Trademark: stc
• Origin: Jiangsu
• HS Code: 82075090
• Production Capacity: 10000PCS

Product Description

Our solid carbide twist drill bits are made from super carbide materia.

hardness up to 91 HRA

speical size ,helix angle design available.

Tialn coating available.


 

STC025-2,  SOLID CARBIDE DRILL, Metric
METRIC SIZES, GOST 17275,  MIDDLE SERIES
Size	Flute Length	Overall Length		Size	Flute Length	Overall Length
3	24	55		7.8	52	95
3.2	24	55		8	52	95
3.5	28	60		8.2	52	95
3.8	30	63		8.5	52	95
4	30	63		8.8	55	100
4.2	30	63		9	55	100
4.5	32	65		9.2	55	100
4.8	36	70		9.5	60	105
5	36	70		9.8	60	105
5.2	36	70		10	60	105
5.5	40	75		10.2	60	105
5.8	40	75		10.5	60	105
6	40	75		10.8	65	110
6.2	42	80		11	65	110
6.5	42	80		11.2	65	110
6.8	45	85		11.5	65	110
7	45	85		11.8	65	110
7.2	45	85		12	70	120
7.5	45	85