階梯鉆，寶塔鉆，臺階鉆，小三件套英製/公製4241Step Drill3pc
Specification:
Material: HSS / High Speed Steel
Surface Treatment: Titanium Coated鍍鈦金
Shank Size: 1/4" Hex Shank
Includes a five-step bit, nine-step bit and ten-step bit.
Quantity: 3pcs
Quantity: 3pcs
The 3 Cutters Come in the Following Sizes:
4-12mm: 4mm,6mm,8mm,10mm,12mm
4-20mm: 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm
3-12mm: 3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm,11mm,12mm
Features:
This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat
It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc
Package Included:
1x Set (3pcs) HSS Step Drill Bit
階梯鉆產品特點：
1、獨特的階梯構造，一隻鑽頭能開多種規格尺寸孔徑，一隻階梯鉆抵上一盒鑽頭。
2、不需使用中心沖，與普通麻花鉆相比不易折斷。現場施工，一支階梯鉆多種規格適用。
3、去毛刺、倒角、開橢圓孔擴、麻花鉆無法完成的功能它成為可能。
4、和普通麻花鉆相比。晃動小、不需領先使用中心沖也能開出漂亮孔徑出來。使用工具：手槍鉆、臺鉆。
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