Gold-max low-friction titanium coating to stop heat burn-out.8% Cobalt for long life and endurance in structural steel and hard metals.135° SPLIT point angle for easy starting and high accuracy.This is a wide range of drilling sizes and will cover almost all types of applications. The minimum hole diameter achievable with this set is 3/16 whereas the maximum diameter is 1 3/8 inches. Precision ground flutes with deep web design for easy chip clearance. This is a set of 5 step drill bits that offer a collection of 50 different sizes for drilling holes.You can also use it to enlarge existing holes. Fast, smooth drilling with minimal kickback Specially hardened for impact wrench use. A Step drill bit is primarily used to drill holes in sheet materials up to 1/8 thickness.VersaDrive Step Drill Bit Set: 12, 22, 30mm. VersaDrive Step Drill Bits have a heavy-duty, 135° split point geometry as standard, providing extremely accurate drill-point starting on a wide range of materials. The non-slip shank design provides a secure hold with all standard drill chucks, preventing slippage. VersaDrive Step Drills have a reinforced hex shank with increased strength for greater feed rates. ![]() ![]() Market Leading 5mm thick drilling capacity. Coremark Metals online metals store provides a variety of different material ranging from steel plate, i beams, expanded metal sheets, aluminum tubing. ![]() Spiral flute design for fast, smooth drilling with a rotary drill or impact wrench. THE FIRST STEP DRILL OPTIMIZED FOR USE WITH IMPACT WRENCHES & IMPACT DRIVERS- CREATE HOLES IN SECONDS!! *Watch the Video Below*
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