About CHTOOLS
Zhejiang Xinxing Tools Co., Ltd. was founded in 1992, is a production enterprise specialized in R & D and manufacture of high-performance hole cutting tools. Xinxing's "CHTOOLS ®" brand includes annular bit series, replaceable tool tip series, deep hole saw series, countersink series, drill rig series, integral cemented carbide series, non-standard, six series products in total, covers product categories including hollow steel plate drills, spade drill, S drill, hole saw, step drill, drill rig, BTA field deep hole drill, countersink, integral cemented carbide bit, reinforced concrete bit and other series products......