Cle-Line C21947 60PC 135 Degree Screw Machine Drill Bit Set

60-Piece Screw Machine Drill Bit Set

The Cle-Line C21947 set supplies 60 high-speed steel drill bits with a 135-degree split point for reduced walking. Sizes range from #1 through #60 in wire gauge increments, covering a broad spectrum of small-diameter holes. A black oxide finish adds corrosion resistance and helps retain lubricant during cutting. The screw machine length keeps the bits rigid for accurate drilling in metal.

Check chuck capacity and material compatibility

Verify that your drill chuck can grip the smallest wire-gauge bits in the set without slipping. Confirm the workpiece material is suited to high-speed steel rather than cobalt or carbide grades. Ensure you have cutting fluid or oil available for steel and stainless steel to prevent premature wear. The 135-degree point angle is optimised for harder materials, not soft plastics or wood.

Fits metalworking benches and maintenance kits

The compact index case organises all 60 bits for quick selection in a toolbox or on a bench. Screw machine length allows use in tight clearances where jobber bits would deflect. Having the full wire-gauge range on hand eliminates trips to the store for odd sizes during prototype or repair work. The set frees up budget otherwise spent on individual bit replacements.