Features:

• Countersink Drill Bit Set 5 pc #4#6#8#10#12: Reliable countersink drill bits secured with pin in 1/4 inch hex shank; counter sink drill bit for wood to predrill screw #4(7/64 inch) #6(9/64 inch) #8(11/64 inch) #10(3/16 inch) #12(7/32 inch) made to drill, countersink, and counter-bore in 1 step. This set does not include depth stop.
• Replacement tapered drill bits: FTG replacement wood countersink tapered bits are available for extended drill bit life; taper drill bits pointed tip and wide flute for drilling fast, clean pilot hole, ensures tight fit for screws; countersinks for wood
• Drill perfect tapered hole drill bit every time: Wood drill bit set with counter bore chamfer angle 82-degree, smooth countersinking in hard and soft wood, tapered holes for screws; adjustable wood countersink drill bits set ideal for woodworking; it come pre-oiled/lubed
• Quality Steel: Third-party tested by US Accredited Lab: HSS M2 Grade 6542 countersink drill bit for wood with tapered drill bits; wood countersink bit with wider flute shape for increased chip flow; counter-bore and plugs size 3/8 inch and 1/2 inch
• Storage Containers are available to protect and keep your drill bits organized: Counter sinker drill bit set designed in Bloomfield, New Jersey by Fair Trade Group USA and Professionally manufactured in China at FTG USA specs; quick change drill bit set