Feature

●【High Quality Material】5 high speed steel HSS high hardness step drill bits and metric cone drill bit set. Titanium coated to reduce friction and heat
●[Drill Size] (3 / 16,1 / 4,5 / 16,3 / 8,7 / 16,1 / 2); (1 / 8,5 / 32.7 / 32.1 / 4,9 / 32,5 / 16,11 / 32,3 / 8,13 / 32,7 / 1. 6,15 / 32,1 / 2mm); (1 / 4,5 / 16,3 / 8,7 / 16,1 / 2,9 / 16,5 / 8,11 / 16,3 / 4); (3 / 16,1 / 4,5 / 16,3 / 8,7 / 16,1 / 2,9 / 16, 5 / 8,11 / 16,3 / 4,13 / 16,7 / 8); (1 / 4,3 / 8,1 / 2,5 / 8,3 / 4,7 / 8,1,1-1 / 8,1-1 / 4,1-3 / 8)
●Tools: Pistol drill, bench drill. Recommended drilling speed is 250-400rpm
●Convenient: There is no need to use a center punch, and it is less likely to break compared to regular twist drills. Automatically deburring, chamfer, expansion hole and drill clean holes during drilling
●Suitable for drilling holes in a variety of materials such as thin metal, aluminum, steel, copper, wood, plastic, fiberglass, brass, PVC, etc


Description

Description:

--5pcs/pcs High Speed Steel HSS High Hardness Step Drill Bit Metric Cone Drill Bit Set
- Titanium coated to reduce friction and heat.
- No need to use center punch and not easy to break compared to regular twist drills.
- Automatically deburring, chamfering, expansion of punched holes, and drill clean holes.
- Tools for Use: Pistol Drill, Bench Drill.
- - Recommended drill speed is 250-400 rpm.
- Suitable for drilling holes in a variety of materials, including thin metal, steel aluminum, copper, wood, plastic, fiberglass, brass, PVC and more.

Specifications:

- Material: High Speed Steel
- Drill Size:
- (3/16, 1/4, 5/16, 3/8, 7/16, 1/2)
- (1 / 8,5 / 32.7 / 32.1 / 4,9 / 32,5 / 16,11 / 32,3 / 8,13 / 32,7 / 16,15 / 32,1 / 2mm)
- (1 / 4,5 / 16,3 / 8,7 / 16,1 / 2,9 / 16,5 / 8,11 / 16,3 / 4)
- (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8)
- (1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8)

Package Includes:

5pcs/set step drill bits