Irwin SPEEDBOR 88714 Spade Drill Bit, 7/8 in Dia, 16 in OAL, Extra Long Length, Flat Flute, 1/4 in Dia Shank, Hex Shank paint--07-13-26 minor stains

minor stains

resulting in better sealing and longer seal life

Cured foam can be sanded

You need a glove that can stand up to more

Knurled control ring

Irwin SPEEDBOR 88714 Spade Drill Bit, 7/8 in Dia, 16 in OAL, Extra Long Length, Flat Flute, 1/4 in Dia Shank, Hex Shank paint--07-13-26 minor stainsBlue groove point and cutting edge for faster chip removal, double cutting spurs scribe the outside of the hole reducing breakout. Grooved hex shank prevents slipping in drill chuck or bit extension and fits all standard quick change chucks. Blue groove point and cutting edge for faster chip removal and 4X faster than standard spade bits Double cutting spurs scribe the outside of the hole reducing breakout 10% larger shank for added durability Grooved