Feature

●3/16" to 7/8" Step Drill Bit: Includes 12 step sizes with 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"
●Industrial Grade Materials: Manufactured with heat treated High-Speed-Steel (HSS bits) with Titanium Coated
●Smoother Cutting: Two-Flute Design for smoother cutting and faster removal of chips, making the debris easy to fall off
●Tri-Flatted Shank: Tri-flatted side cutouts fits into power tools chuck securely to eliminate slippage and provide stronger grip for standard drill chuck
●Longer Strength & Durability: Perfect for drill holes in steel, copper, plastic, aluminum, and other thin materials (Thickness is below 5 mm). No need to replace other step drills and save time!


Description

Product Specifications

Type: Step Drill Bit

Material: High Speed Steel 4241

Size: 3/16" to 7/8"

3/16(4.76mm), 1/4(6.35mm), 5/16(7.94mm), 3/8(9.53mm), 7/16(11.11mm), 1/2(12.7mm), 9/16(14.29mm), 5/8(15.88mm), 11/16(17.46mm), 3/4(19.05mm), 13/16(20.64mm), 7/8(22.22mm）

Surface treatment: Titanium plating (Golden)

Suitable hardness: Hardness below 25°

Workpiece thickness: Less than 5 mm

Features

1, Deburring, chamfering, round hole reaming, it can complete the function that the twist drill can not complete

2, Two-Flute Design for smoother cutting and faster removal of chips

3, Tri-flatted side cutouts fits into power tools chuck securely and offer stronger grip for standard drill chuck

4, Perfect for drill holes in steel, copper, plastic, aluminum, and other thin materials (Thickness is below 5 mm)

5, Use tools: hand drill, bench drill

Packaging Includes

1pc * 3/16" to 7/8" Step Drill Bit

【Please NOTE】

Please use water to cool when working, which can effectively extend the service life of the drill bit. The recommended drilling speed is 250-400 rpm!