Changzhou BOMI Tools

Changzhou BOMI Tools Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Changzhou BOMI Tools, Hardware shop, Changzhou.

Changzhou Bomi Tools Co., Ltd is a manufacturer and trader specialized in the research, development and production of Long length twist drills, Taper drills, Step drills.

01/08/2026

Test 11MM of 25pcs drill set
Rang of speed:480 r/m
Cutting depth:15mm
Cutting duration: 3min
Holes: 8
Material being machined :Stainless steel

29/07/2026

Test 10MM of 25pcs drill set
Cutting depth:15mm,
Cutting duration: 3min
Holes: 7
Material being machined :Stainless steel

Test 9MM of 25pcs drill setCutting depth:15mm,Cutting duration: 3minHoles: 10Material being machined :Stainless steel
22/07/2026

Test 9MM of 25pcs drill set
Cutting depth:15mm,
Cutting duration: 3min
Holes: 10
Material being machined :Stainless steel

22/07/2026

9MM drill bit after 3min cutting --Still sharp?

22/07/2026

7mm drill bit
drilling test

21/07/2026

8 mm HSS twist drill durability test on steel. Clean cutting and consistent hole quality throughout the test.

We manufacture HSS, cobalt and carbide drill bits, with OEM packaging and custom specifications available.

What size should we test next?

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Changzhou

Telephone

+8613815045320

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